cadcam lab manual 06-08-2014 (1).doc

Aim: To Analyze the Analysis of Cantilever Beam

SRI VENKATESWARA COLLEGE OF ENGINEERING & TECHNOLOGY

(AUTONOMOUS)

Experiment No. Date:

SRI VENKATESWARA COLLEGE OF ENGINEERING AND TECH

(AUTONOMOUS)RVS NAGAR, CHITTOOR-517127

DEPATMENT OF MECHANICAL ENGINEERINGM.Tech- I- Sem (CAD/CAM)Modeling Lab (12BCM11)LABORATORY MANUALPrepared byDEPATMENT OF MECHANICAL ENGINEERING

SRI VENKATESWARA COLLEGE OF ENGINEERING AND TECHNOLOGY RVS NAGAR, CHITTOOR-51712

Auto CAD

1. IntroductionFirst of all lets have a look at the AutoCAD 2010 interface. When you open it the initial workspace is at Initial Setup Workspace. You can change it to 2D Drafting & Annotation, 3D Modeling and AutoCAD Classic mode as necessary by clicking the Workspace Switching menu at lower right corner. We will proceed with 2D Drafting & Annotation for 2D drawings. In this workspace only the tools for 2D drawing are given. In 3D Modeling, all the tools for 3D drawing are given. But in Initial Setup Workspace, both the 2D & 3D drawing tools are given. So sometimes it is preferable to work in Initial Setup Workspace. In AutoCAD Classic the interface of the software from 2000-2008 are given. If anyone, who is very much habitual with the previous versions, can use this workspace for convenience instead of the new one which was adopted from 2009.LineKeystroke Icon location " L" To construct a line from one point to another: The command should be co-ordinate based (as mentioned previously) or directly inputting the length (which is actually easier and used in practical field).For example, if you need to draw a line of 10 inch long, your command should be:LEnter(or click the icon) Specify first point : Click at the starting point and hold cursor towards the desired directionSpecify next point:10"Enter EscIf you need to draw a line 10mm away at the right of your last entered point, then you can do it by first drawing a 10mm line, or you can give direct input. For that you have to use @ symbol. The starting point should be indicated by co-ordinate (@10,0) then the length either by co-coordinator by giving line length (relative co-ordinate).

Now, if the line needs to be drawn at a specific angle, such as 45, then the command should be:LEnter(or click the icon)

Specify first point : Click at the starting point and hold cursor towards the correct directionSpecify next point:10"Draw>Circle Draw a circle based on a center point and a radius. But there are other inputs to draw. Click the arrow in the icon, there will be a drop down menu showing you the other options like center & diameter, 2point, 3point etc.For example, to draw a circle of radius 4", center at (1', 1'), the commands should be:CEnter(or click icon)Specify center point of circle:1',1'Enter4" EnterRectangleKeystroke

Icon

location "R" Home > Draw > Rectangle

Can be draw in 2 ways:No.1: showing two opposite diagonal points of the rectangle.No.2: giving the arm lengths of the rectangle (first along X axis, second along Y axis)For example, to draw a rectangle 10" x 5, the commands should be: REnter (or click icon)Specify first corner point. Select any point.@10mm,5mmEnterPolygonKeystroke Icon location "POL" Home > Draw > Polygon

Used to construct polygon, rectangle, triangle or any object consisting as many sides as needed of equal length.Example:polEnter (or click icon)

Enter no.ofsides:6Select Center of polygon: 20,12Select one option:Inscribed in circleorCircumscribed about circleEnter radius of circle: 4For the command Inscribed in circle or Circumscribed about circle; your object will be likeor Remember, if you choose Inscribed in circle, the length of each sides of the object will be equal to the value of radius. On the other case, the lengths will be greater than the radius.ArcKeystrokeIcon

location "A" Home > Draw > Arc

Draws an arc of specific dimension. It can be drawn in various ways. Click the arrow button on the icon. The options will appear.

For a 3 point arc, the command should be:aEnter (or click icon)Specify start point of arc: 20,10EnterSpecify second point of arc: 5,2EnterSpecify end point of arc: 5,2Enter

Details on Line:In the previous lesson, you have learnt how to draw a line. But still problem can arise regarding placing a line at a certain direction. So clear your conception.Look at the two pictures: Here, you want to draw a line at 45 degree angle with the horizontal line at the upper side. But when you give the command for 450, the line goes downward. Why?Because, If you keep the starting point fixed and rotate the base line, it goes clockwise at the upper side and counterclockwise at the downward side. As a result, if you give input of 450 angled lines, it goes downward making 450 with the base line counterclockwise.

Now, imagine a line at the right side of the point (the dotted green line).Give line command and hold your cursor above the green line - as you want to draw a line above it at 45 degree angle. Now give input for 45 degree.This time the line stays at the desired side. Because that side is the counterclockwise side of the imaginedline.But this line is not actually drawn there. So why didnt the line go downward?Because AutoCAD considersthe line (to measure angle with respect to) towards which you hold your cursor, even if it is not drawn on the paper; And of course only the horizontal line.Dimension:After you have drawn any object, you will need to show the dimension in the drawing. To do that: go toAnnotation>Dimension. Click the arrow at the lower right of the panel. You will have the dialog box as below. Click Modify button.

Exp: No: 1AIM: To develop the given model by using auto cad 2D commands and to specify its Dimension.

SOFTWARE REQUIRED: - AUTOCAD 2010 Database.

COMMANDS IN USE: - LIMITS, ZOOM, LINE, AND DIMLINEAR.

PROCEDURE: - In order to obtain given model the following procedure will be followed

COMMAND: - Limits:

Specify lower left corner: (0, 0) Specify upper right corner : (150,100)

Command: ZOOM: [All/Center/Previous/Scale/Window/Object] : All

Command: LINE:

Specify first point: 0, 0

Specify next point or (undo): 100[00] Specify next point or (close/undo): 20[900] Specify next point or (close/undo): 40[1800] Specify next point or (close/undo): 120[900] Specify next point or (close/undo):20[1800] Specify next point or (close/undo):120[2700] Specify next point or (close/undo): 40[1800] Specify next point or (close/undo): C Specify next point or (close/undo): ESC

Command: DIMLINEAR

By using this command give dimensions linearly for drawn object to indicate its linear dimensions.

PRECAUTIONS:-1. Limits should be given before drawing the object.

2. Object should be drawn from a specific point of location only.

3. Ensure that proper sequence should be followed to draw an object.

RESULT:Hence by using auto cad 2010 2D commands we have drawn the object model and Dimensions are specified.

EXP NO: 2AIM: To develop the given model by using auto cad 2D commands and to specify its Dimension.


COMMANDS IN USE: - LINE, CIRCLE, DIMLINEAR, DIMDIA.

PROCEDURE: - In order to obtain given model the following procedure will be followed.

COMMAND: - Limits:

Specify lower left corner: (0,0) Specify upper right corner: (150,150)

Command: ZOOM:[All/Center/Previous/Scale/Window/Object] : All

Command: LINE:

Specify first point: 0, 0

Specify next point or (undo): 150[00] Specify next point or (close/undo): 210[900] Specify next point or (close/undo): 210[2700] Specify next point or (close/undo): C Specify next point or (close/undo): ESC

Command: CIRCLE

Specify centre point for circle (3p/2p/ttr): 30,30 Specify radius of circle or (diameter): d Specify diameter of the circle: 10

Command: CIRCLE

Specify centre point for circle (3p/2p/ttr): 120, 30 Specify radius of circle or (diameter): d

Specify diameter of the circle: 10

Command: CIRCLE

Specify centre point for circle (3p/2p/ttr): 120,120 Specify radius of circle or (diameter): d

Specify diameter of the circle: 10 Command: CIRCLE

Specify centre point for circle (3p/2p/ttr): 30,120 Specify radius of circle or (diameter): d

Specify diameter of the circle: 10

Command: DIMLINEAR

By using this command give dimensions linearly for drawn object to indicate its Linear dimensions.

PRECAUTIONS:-1. Limits should be given before drawing the object.

2. Object should be drawn from a specific point of location only.

3. Ensure that proper sequence should be followed to draw an object.

RESULT:Hence by using auto cad 2006 2D commands we have drawn the object model and Dimensions are specified.

EXP NO: 3AIM: To develop the given model by using auto cad 2D commands and to specify its Dimension.


COMMANDS IN USE: - LIMITS, ZOOM, LINE, DIMLINEAR.

PROCEDURE: - In order to obtain given model the following procedure will be followed.

First draw the axis line (center line),X and Y ,

Command: LINE

Command: LIMITS

Specify lower left corner: 0, 0 Specify upper left corner: 300,300

Command: ZOOM:[All/Center/Previous/Scale/Window/Object] : All

Command: LINE.

Specify the first point: 0,0

Specify the next point: @150 Boss/Base>Revolve) ok

4. Create circle of 2D sketch of Diameter of 121.92 mm, on right plane and extrude to 50.8mm (Select the face by (Enter Space bar> double click the Normal plane) and Draw the 2D sketch as given above Extrude by (Insert>Boss/Base>Extrude)) ok.

5. Draw the sketch on edge wheel face, sketch for arm hole , Select the face by (Enter Space bar> double click the Normal plane)And Draw the 2D sketch as given below

6. And remove the material by (Insert>cut>Extrude), through all, OK.

7. Add fillet R12.7mm inner(Insert>Features>Fillet/Round),add fillet 5.08mm for corner ok

8. Click Circular Pattern ,click (View>Temporary Axes,) select center axis as rotation axis

9. ( Give 360 degree and 5 equal spacing) , Select Cut-Extrude1, Fillet1 and Fillet2 as a Features to Pattern. OK.

10. Click on hub face, insert sketch, sketch center circle diameter 69.85mm. Extrude Cut to 12.7mm deep. (Insert>cut>Extrude).

11. Add chamfer 12.7mm to inner cut and add chamfer 6.35mm to wheel edge ok done. (Insert>Feature>chamfer).

Result:

Thus the given model is complete.THREE LAYER ROPEAIM:

To model the given object using the Sweep and circular step and repeat feature as per the dimensions given.

PROCEDURE:1. Create a spline curve sketch on Front Plane.(Front plane(Insert Sketch(Draw the spline using spline tool bar (right click(end spline)

(Select (close dialog box and(exit sketch.)2. Another spline curve sketch on top plane(select (Top plane(Insert Sketch(click Space bar and double click the Normal plane (Draw the spline using spline tool bar(right click(end spline)

(Select (close dialog box and(exit sketch.)

3. Create 3D plane curve(Using, insert( curve(projected, select Two (cures) sketches ,When we rotate the geometry it will show 3D curve. ( Click OK.

4. At one end of the 3D curve, create new plane.(Insert(Reference Geometry(plane),select curve end point and edge curve and OK.

5. Create a circle with suitable dimensions, nearby end of the spline curve.

6. Before finishing sketch (select (Tools(sketch tools(circular step and repeat) from that given number of rope layers.( 3 or 4). OK and select finish sketch.

7. Take sweep (insert(boss/base (sweep) command and give Select profile and there relative circle, and

Select path there relative curve,Options(orientation /twist type(select (along path),Define by(select turns (give the valve of 50 to 100). (ok done.

Result:

Thus the given model is completed.

ANSYS -14

About the Basic FEA System

The Basic FEA System is composed of three modules: GEOSTAR for model creation and results display, STAR for linear static analysis, and DSTAR for buckling and modal analysis. The integrated system lets you model, analyze, and evaluate your design within one graphical environment.

Mechanical APDL Release Notes:Release 14.5 of the Mechanical APDL application offers most of the capabilities from prior releases plus many new features and enhancements. Areas where you will find changes and new capabilities include the following:

Structural (p. 17)

Coupled-Field (p. 24)

Low-Frequency Electromagnetics (p. 24)

Acoustics (p. 24)

Diffusion (p. 25)

Radiation (p. 26)

Solvers (p. 26)

Linear Perturbation (p. 28)

Results File (p. 29)

Commands (p. 29)

Elements (p. 34)

Other Enhancements (p. 36)

Also see Known Incompatibilities (p. 39) and ANSYS Customer Portal (p. xi) for important information about this release.

The Linear Static Analysis Module (STAR):

STAR uses the linear theory of structures, based on the assumption of small displacements, to calculate structural deformations. As mentioned earlier, STAR calls the STRESS submodule to calculate stresses. The STRESS submodule calculates element and nodal stresses for most elements based on the results from STAR or DSTAR (modal analysis only). Stresses for multiple load cases are obtained in a single run and the combination of load cases is possible in the post processing stage. Stresses can be obtained in any defined coordinate systems. The STRESS module supports all of STAR features. In a typical linear static stress analysis, you will determine the stresses, displacements, strains, and reactions in the finite element model. The analysis is linear if the nonlinearities due to various sources can be either linearized or completely ignored. Results from a linear analysis include nodal displacements, nodal and element stresses, forces, reactions, etc. These results can be graphically viewed on the screen or inspected in the output file.

The following are some important features of the linear static stress analysis module STAR:

Extensive element library: Isotropic, orthotropic, anisotropic and composite material properties.

Temperature-dependent material properties.

Failure criteria for composite elements.

Prescribed displacements, with or without other loadings.

Coupled degrees of freedom and constraint equations.

Thermal, gravitational and centrifugal loads.

Beam loading.

In-plane effects in the stiffness evaluation (geometric or differential stiffness).

Multiple load cases in a single run.

Soft spring option to prevent instabilities.

Substructuring capability (for large problems) to build and analyze the chosen superelements through condensation and recovery process.

Fluid-solid interaction.

Gap-friction problems.

Grid-force balance and reaction force calculation.

Asymmetric loading of axisymmetric models.

Strain energy and error calculations.2D and 3D crack element options: the program computes the stress intensity factors for all three modes of fracture.

Adaptive P-, H- and H-P versions of the adaptive finite element method, including three dimensional problems using tetrahedral elements.

Bonding of (or connecting) non-compatible parts at the common boundary of the same model even if nodes and element types do not match. Solid-solid, solid-shell and shell-shell bonds can be made by specifying the interface geometric entity. This feature can be used to make curve-to-curve, curve-to surface and surface-to-surface bonding of your models with non-compatible meshes. This model consists of tetrahedron solid elements in the hull of the missile to which the fins modeled with shell elements are connected.

1.STEPPED BARAIM: For stepped bar to find the nodal displacement, stress in each element at the fixed end.A1 = 200 mm^2,A 2 = 100 mm^2 and E1 = E2 = 200GPa.

PREPROCESSING

1. Main Menu > Preprocessor> Element Type > Add/Edit/Delete >Add >Structural Link > 3D finit stn 180> OK>Close.

2. Main Menu >Preprocessor > real Constants >Add/Edit/Delete >Add >OK

Cross-Sectional area AREA > Enter 200 >Add >OK

Cross-sectional area AREA >Enter 100 >OK >Close.

3. Main Menu >Preprocessor >Material Props >Material Models

Material Model Number 1, click Structural >Linear >Elastic >Isotropic

Enter EX = 200E3 and PRXY = 0.3 >OK

(Close the Define Material Model Behavior window.)

Create the Nodes and elements. As it is stated in the problem that it uses 2 element model. Hence create 3 nodes and 2 elements.

4. Main MENU >Preprocessor > Modeling >Create > Nodes >In Active CS Enter the coordinates of node 3>OK.

5. Main Menu >Preprocessor >Modeling > Create >Elements > Elem Attributes > OK >Auto Numbered > Thru nodes Pick The 1st and 2nd node >OK.

Elem Attributes >change the Real content set number to 2 >OK>Auto Numbered >thru nodes Pick the 2nd and 3rd node >OK.

6.Main Menu >Preprocessor >loads >Define Loads >Apply >Structural >Displacement >On Nodes Pick the 1st node >Apply >All DOF = 0 >OK.

7. Main Menu >Preprocessor >loads >Define Loads >Apply >Structural >Force/Moment >On nodes Pick the 3rd Node >Ok >Force/Moment value = 500 in FX direction >OK>Force/Moment >On Nodes pick the 2nd node >OK >Force/Moment value = -1000 in FX direction.

The model-building step is now complete, and we can process to the solution. First to be safe, save the model.

Solution: The interactive solution proceeds.8. Main MENU >Solution >Solve >Current LS >OK

The/STATUS Command window displays the problem parameters and the Solve Current Load Step window is shown. Check the solution options in the/STATUS window and if all is OK, select File >Close.

In the Solve Current Load Step window, Select OK, and when the solution is complete, close the Solution is Done! Window.

POSTPROCESSING

We can now plot the results of this analysis and also list the computed values.

9. Main Menu>General postproc >Plot Results >Contour Plot >Nodal Solu >DOF >Solution >Displacement vector sum >OK.

10. Main Menu >General Postproc >Element Table >Define Table >ADD Select Bysequence num and LS and type 1 after LS as shown in fig. >OK

11. Main Menu >General Post Proc >Plot Results >Contour Plot >Elem Table >Select LS1 >OK

Result:

Thus the given model is simulated and verified stress and deflection.2. TRUSS

AIM: Determine the nodal displacements, element stresses and support reactions for the three members truss A = 800 mm^2 and E = 200GPa for all members.

PREPROCESSING


2. Main Menu >Preprocessor > real Constants >Add/Edit/Delete >Add >OK




3. Main Menu >Preprocessor >Material Props >Material Models

Material Model Number 1, click Structural >Linear >Elastic >Isotropic

Enter EX = 200E3 and PRXY = 0.3 >OK


Create the Nodes and elements. As it is stated in the problem that it uses 2 element model. Hence create 3 nodes and 2 elements.

4. Main MENU >Preprocessor > Modeling >Create > Nodes >In Active CS Enter the coordinates of node 3>OK.

5. Main Menu >Preprocessor >Modeling > Create >Elements > Elem Attributes > OK >Auto Numbered > Thru nodes Pick The 1st and 2nd node >OK.

Elem Attributes >change the Real content set number to 2 >OK>Auto Numbered >thru nodes Pick the 2nd and 3rd node >OK.

6. Main Menu >Preprocessor >loads >Define Loads >Apply >Structural >Displacement >On Nodes Pick the 1st node >Apply >All DOF = 0 >OK

7. Main Menu >Preprocessor >loads >Define Loads >Apply >Structural >Force/Moment >On nodes Pick the 2nd Node >Ok >Force/Moment value = 8000 in FX direction >OK>Force/Moment >On Nodes pick the 2nd node >OK >Force/Moment value = -12000 in FY direction.

Main Menu >Preprocessor >loads >Define Loads >Apply >Structural >Displacement >On Nodes Pick the 3rd node >Apply >FY = 0 >OK

The model-building step is now complete, and we can process to the solution. First to be safe, save the model.

Solution: The interactive solution proceeds.

8. Main MENU >Solution >Solve >Current LS >OK

The/STATUS Command window displays the problem parameters and the Solve Current Load Step window is shown. Check the solution options in the/STATUS window and if all is OK, select File >Close.

In the Solve Current Load Step window, Select OK, and when the solution is complete, close the Solution is Done! Window.

POSTPROCESSING


9. Main Menu>General postproc >Plot Results >Contour Plot >Nodal Solu >DOF >Solution >Displacement vector sum >OK.

10. Main Menu >General Postproc >Element Table >Define Table >ADD Select Bysequence num and LS and type 1 after LS as shown in fig. >OK.

11. Main Menu >General Post Proc >Plot Results >Contour Plot >Elem Table >Select LS1 >OK.

Result:

Thus the given model is simulated and verified stress and deflection.3.WALLS

AIM: To Determine the Temperature Distribution of combined plane walls.

PREPROCESSING


2. Main Menu>Preprocessor> Element Type> Add/Edit/Delete>Add>Click on Link>then on 3D conduction(Link 33)>OK>Add>Click on Link >then on 3D convection 34 >Ok>Close.

3. Main Menu>Preprocessor >Real Constants>Add/Edit/Delete>Add>Click on Link 32>Ok.

Enter cross-sectional area AREA>Enter 1>OK

Add>Click on Link 34>Ok

Enter cross sectional area AREA>Enter 1>Ok>Close.

Enter the material properties.

4. Main Menu >Preprocessor>Material props>Material Models

Material Model Number 1,

Click Thermal >Conductivity >Isotropic

Enter KXX=30>ok

Then in the material model window click on Material menu >New model>OK


Click Thermal>Conductivity>isotropic

Enter KXX=50>Ok

Then in the material Model window click on Material menu>New Model>OK


Click Thermal>Conductivity>Isotropic

Enter KXX=20>ok.

Then in the material model window click on Material menu >New Model>OK


Click, Thermal>Convection or film coef.

Enter HF=25>ok


Create the nodes and elements.

5. Main Menu>Preprocessor>Modeling>Create>Nodes>InActive CS Enter the coordinates of node 1>Apply Enter the coordinates of node 2>Apply Enter the coordinates of node 3>Apply>Enter the coordinates of node 4>Apply Enter the coordinates of node 5>Ok

6. Main Menu>Preprocessor>Modeling>Create >Elements>Elem Attributes>ok>Auto Numbered>Thru nodes Pick the 1st and 2nd node>Ok

>Elem Attributes>change the material number to 2>Ok>Auto Numbered>Thru nodes Pick the 2nd and 3rd node>Ok

>Elem Attributes>change the material number to 3>OK>Auto Numbered>Thru nodes Pick the 3rd and 4th node>OK

>Elem Attributes >change the element type to Link 34>Change the material number to 4>Change the real constant set number to 2>Ok>Auto Numbered>Thru nodes Pick the 1st and 5th node >Ok

Apply the boundary condition and temperature.

7. MainMenu>Preprocessor>Loads>DefineLoads>Apply>Thermal>Temperature>On nodes pick the 4th node >Apply >Click on TEMP and Enter Value -20>OK8. MainMenu>Preprocessor>Loads>DefineLoads>Apply>Thermal>Temperature>On nodes pick the 5th node>Apply>Click on TEMP and Enter Value =800>OK.

Solution: The interactive solution proceeds.

9. Main Menu>Solution>Solve>Current LS>ok

The/STATUS Command window displays the problem parameters and the solve current Load Step Window is shown. Check the solution options in the/STATUS window and if all is OK, select File>Close

In the solve Current Load Step window, Select OK, and when the solution is complete, Close the Solution is done.

Post processing


10.Main Menu >General Postproc >Plot Results>Contour Plot>Nodal Solu>DOF

11. Main Menu >General Postproc>List Results>Nodal Solu>Select Temperature>Ok

Result:

Thus the given model is simulated and verified Temperature at each node of elements.CAM

WORD DETAILS:

Although the control will, in general, accept part programming words in any sequence, it is recommended that the following word order for each block is used.

N; G; X or U; Z or W; I; K; F; S; T;

O: PROGRAM NUMBER The O followed by a 4 digit numeral value is used to assign a program number.

Example: O1002

N: SEQUENCE NUMBER

The N word may be omitted. When programmed, the sequence number following the N address is a four digit numerical value and is used to identify a complete block of information. Although ascending, descending, or duplicate numbering is allowed, it is best to program in ascending order in increments of 10. This allows for future editing and simplified sequence number search.

G: PREPARATORY COMMAND:

The two digit G command is programmed to set up the control to perform an automatic machine operation. A full list of G codes are given, one G word from each modal group and one non modal G word can be programmed on the same block.

Example:

Valid N 100 G00 G40 G41 G90 G95

*G40 & G41 are from the same group.

A retained G word (Modal) from one group remains active until another G word from the same group is programmed.

One-shot G word (Non-Modal) must be programmed in every block when required.

G-CODES LISTING FOR DENFORD FANUC LATHES:

Note: - NOT ALL G CODES APPLY TO EACH MACHINE.

Group 1G00Positioning (Rapid Traverse)

1G01Liner Interpolation (Feed)

1G02Circular Interpolation CW

1G03Circular Interpolation CW

0G04Dwell

0G10Offset Value Setting By Program

6G20Inch Data Input

6G21Metric Data Input

9G22Stored Stroke Check On

9G23Stored Stroke Check Off

0G27Reference Point Return Check

0G28Reference Point Return

0G29Return from Reference Point

0G30Return to 2nd Reference Point

0G31Skip Function

1G32Thread Cutting

1G34Variable Lead Thread Cutting

0G36Automatic Tool Compensation X

0G37Automatic Tool Compensation Z

7G40Tool Nose Radius Compensation cancels

7G41Tool Nose Radius Compensation Left

7G42Tool Nose Radius Compensation Right

0G50Work Co-ord. Change/Max. Spindle Speed setting

0G65Macro call

12G66Macro Modal Call Cancel

12G67Macro Modal Call Cancel

4G70Finishing Cycle

4G71Stock Removal in Turning

0G72Stock Removal in Turning

0G73Pattern Repeating

0G74Peck Drilling in Z Axis

0G75Grooving in X Axis

0G76Thread Cutting Cycle

1G90Cutting Cycle A

1G92Thread Cutting Cycle

1G94Cutting Cycle B

2G96Constant surface Speed Control

2G97Constant Surface Speed Control Cancel

11G98Feed per Minute

11G99Feed per Revolution

NOTES FOR G CODE LISTING: Note 1:-

G Codes of 0 group represent those non modal and are effective to the designed block.

Note 2:-

G Codes of different groups can be commanded to the same block. If more than one G codes from the same group are commanded, the latter becomes effective.

AXIS DEFINITIONS:- Z AXIS:-

The Z axis is along a line between the spindle and the tailstock, or the center line of rotation of the spindle. Minus (-) movements of the tool are left toward the head stock; positive (+) movements are right towards the tailstock.

X AXIS:-

The X axis is 90 degrees from the Z axis (perpendicular to the Z axis). Minus (-) movements of the tool are toward the center-line of rotation, and positive (+) movements are away from the center line of rotation.

X: X AXIS COMMAND:-

The X word is programmed as a diameter which is used to command a change in position perpendicular to the spindle center-line.

U: X AXIS COMMAND:-

The U word is an incremental distance (diameter value) which is used to command a change in position perpendicular to the spindle center-line. The movement is the programmed value.

Z: Z AXIS COMMAND:-

The Z word is an absolute dimension which is used is used to command a change in position parallel to the spindle center-line.

W: Z AXIS COMMAND:-

The W word is an incremental distance which is used to command a change of position parallel to the spindle center-line.

Do not program X & U or Z & W in the same block. If an X axis command calls for no movement it may be omitted.

X, U or P: DWELL:-

The X word is used with G04 to command a dwell in seconds.

The P word is used with G04 to command a dwell in milliseconds.

I WORD:-

For arc programming (G02 or G03) , the K Value (with sign) is programmed to define the incremental distance parallel to the Z axis, between the start of the arc and the arc center.

K WORD:-

For arc programming (G02 or G03), the K value (with sign) is programmed to define the incremental distance parallel to the Z axis, between the start of the arc and the arc center.

The maximum arc for I & K programming is limited to the quadrant. If I or K is zero, it must be omitted.

F WORD:-

a) In G99 mode the F word is used to command feed/rev.b) In G98 mode the F word is used to command feed/min.c) In G32 mode the F word specifies the lead (pitch) of the thread.P WORD:-

a) Used in automatic cycles to define the first block of a contour.b) Used with M98 to define a subroutine number.Q WORD:-

Q words are used in automatic cycles to define the last block of a contour.

R WORD:-

For circular interpolation (G02 or G03) the R word defines the arc radius from the center of the tool nose radius (G40 active) - or the actual radius required (G41/ G42 active).

S WORD:-

a) In the constant surface speed mode (G96) the four digit S word is used to command the required surface speed in either feet or meters per minute.b) In the direct R.P.M mode (G97), the four digit S word is used to command the spindle speeds incrementally, in R.P.M between the ranges available for the machine.c) Prior to entering constant surface speed mode (G96) the S word is used to specify a speed constraint, the maximum speed you wish the spindle to run at. To set this restraint the S word is programmed in conjunction with the G50 word. T WORD:-

The T words are used in conjunction with M06. Those are used to call up the required tool on an automatic indexing turret machine, and to activate its tool offsets. M WORD:-

An M word is used to initiate auxiliary functions particular to the machine. One M code can be programmed with in one program block together with other part program information.

M- CODE LIST FOR DENFORD FANUC LATHES:-All M Codes marked with an asterisk will be executed at the end of a block (i.e., after the axis movement).

*M00PROGRAM STOP

*M01OPTIONAL STOP

*M02PROGRAM RESET

M03SPINDLE FORWARD

M04SPINDLE REVERSE

*M05SPINDLE STOP

M06AUTO TOOL CHANGE

M07COOLANT "B" ON

M08COOLANT "A" ON

*M09COOLANT OFF

M10CHUCK OPEN

M11CHUCK CLOSE

M13SPINDLE FORWARD & COOLANT ON

M14SPINDLE REVERSE & COOLANT ON

M15PROGRAM INPUT USING."MIN P" (SPECIAL FUNCTION)

M16SPECIALTOOL CALL (TOOL CALL IGNORES TURRET)

M19SPINDLE ORIENTATE

M20SPINDLE INDEX A

M21SPINDLE INDEX 2A

M22SPINDLE INDEX 3A

M23SPINDLE INDEX 4A

M25QUILL EXTEND

M26QUILL RETRACT

M29SELECT "DNC" MODE

M30PROGRAM RESET & REWIND

M31INCREMENT PARTS COUNTER

M37DOOR OPEN TO STOP

M38DOOR OPEN

M39DOOR CLOSE

M40PARTS CATCHER EXTEND

M41PARTS CATCHER RETRACT

M43SWARF CONVEYOR FORWARD

M44SWARF CONVEYOR REVERSE

M45SWARF CONVEYOR STOP

M48LOCK % FEED AND % SPEED AT 100%

M49CANCEL M48 (DEFAILT)

M50WAIT FOR AXIS IN POSITION SIGNAL (CANCELS

CONTINUOUS PATH)

M51CANCEL M50 (DEFAILT)

M52PULL-OUT IN THREADING = 90 DEGRESS (DEFAILT)

M53CANCEL M52

M54DISABLE SPINDLE FLUCTUATION TESTING (DEFAILT)

M56SELECT INTERNAL CHUCKING (FROM PLC EDITION "F")

M57SELECT EXTERNAL CHUCKING (FROM PLC EDITION "F")

M62AUX.1 ON

M63AUX.2 ON

M64AUX.1 OFF

M65AUX.2 OFF

M98SUB PROGRAM CALL

M99SUB PROGRAM END

FACING CYCLE[BILLET X25 Z70]

G21 G98;

G28 U0W0;

M06 T1 ;( FACING TOOL)

M03 S1200;

G00 X26 Z0;

G94 X0 Z-0.5 F50;

Z-1.0

Z-1.5

Z-2.0

Z-2.5

Z-3.0

Z-3.5

Z-4.0

Z-4.5

Z-5.0

Z-5.5

Z-6.0

Z-6.5

Z-7.0

Z-7.5

Z-8.0

Z-8.5

Z-9.0

Z-9.5

Z-10.0

G28 U0W0;

M05;

M30;

TURNING CYCLE[BILLET X28 Z70]

G21 G98;

G28 U0W0;

M06 T1 ;( FACING TOOL)

M03 S1000;

G00 X25 Z1;

G94 X24 Z45 F50;

X23

X22

X21

X20

X19 Z-40

X18

X17

X16

X15

X14 Z-20

X13

X12

X11

X10

G28 U0W0;

M05;

M30;

500 N

200 mm

Stress pattern for stepped bar

100 mm

1000 N

INTRODUCTION

Page 1

cadcam lab manual 06-08-2014 (1).doc

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