01 mold and die - kocw
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Bong-Kee LeeSchool of Mechanical Engineering
Chonnam National University
Mold Design
1. Mold & Die
School of Mechanical EngineeringMold Design
Mold & Die Industry
Korea’s mold & die industry (2009)– Production (\, million KRW)
2007 2008 2009 Share
Plastic molds 2,129,100 2,335,300 2,352,900 41.3
Press dies 1,259,300 1,450,000 1,964,400 34.5
Die casting molds 113,900 109,500 101,400 1.8
Others 1,047,000 1,247,800 1,272,300 22.3
Total 4,549,300 5,142,600 5,691,000 100.0
School of Mechanical EngineeringMold Design
Mold & Die Industry
Korea’s mold & die industry (2009)– Production regions (\, million KRW)
Companies Production
Gyeonggi 486 (36.3) 2,015,540 (35.4)
Inchon 133 (9.9) 525,016 (9.2)
Seoul 97 (7.2) 375,261 (6.6)
Busan 110 (8.2) 257,502 (4.5)
Gyeongnam 141 (10.5) 739,091 (13.0)
Daegu 92 (6.9) 268,128 (4.7)
Gyeongbuk 93 (7.0) 560,352 (9.8)
Gwangju 76 (5.7) 342,422 (6.0)
Ulsan 35 (2.6) 310,677 (5.5)
Companies Production
Chungnam 22 65,814 (1.2)
Chungbuk 18 72,769 (1.3)
Jeonbuk 16 63,834 (1.1)
Daejeon 9 49,521 (0.9)
Jeonnam 6 8,589 (0.2)
Gangwon 4 -
Jeju - -
Etc. - 36,509 (0.6)
Total 1,338 5,691,025
School of Mechanical EngineeringMold Design
Mold & Die Industry
Korea’s mold & die industry (2011)– Exports and imports (US$ 1,000)
2007 2008 2009 2010 2011 Share
Plastic molds 819,341 887,543 730,468 1,043,077 1,326,250 59.0
Press dies 483,521 397,001 532,377 515,433 615,028 27.4
Die casting molds 78,357 83,612 107,860 88,563 163,761 7.3
Others 83,474 139,190 81,509 118,772 142,747 6.3
Total 1,464,693 1,507,346 1,452,214 1,765,845 2,247,786 100.0
2007 2008 2009 2010 2011 Share
Plastic molds 64,217 62,190 71,533 63,433 61,677 44.2
Press dies 25,234 20,793 17,222 20,299 19,138 13.7
Die casting molds 12,789 27,485 23,414 27,155 16,206 11.6
Others 26,081 31,066 27,984 24,091 42,576 30.5
Total 128,321 141,534 140,153 134,978 139,597 100.0
School of Mechanical EngineeringMold Design
Mold & Die
Definition of “Mold”– a cavity in which a substance is shaped– the frame on or around which an object is constructed
School of Mechanical EngineeringMold Design
Mold & Die
Definition of “Die”– any of various tools or devices for imparting a desired
shape, form, or finish to a material or for impressing an object or material: as
• (1): the larger of a pair of cutting or shaping tools that when moved toward each other produce a desired form in or impress a desired device on an object by pressure or by a blow (2): a device composed of a pair of such tools
• a mold into which molten metal or other material is forced• a perforated block through which metal or plastic is drawn or
extruded for shaping
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Press die
• Blanking die• Bending die• Drawing die• Compression die• Forming die• Compounding die• Progressive die
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Press die
• Blanking die: cutting process such as shearing, blanking, and punching
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Press die
• Bending die
v bending wipe bending
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Press die
• Drawing die
deep drawing
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Press die
• Progressive die
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Press die
• Progressive die
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Compression mold• Transfer mold• Injection mold• Extrusion mold• Blowing mold• Vacuum mold
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Compression mold
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Transfer mold
pot-type transfer mold plunger-type transfer mold
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Injection mold
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Extrusion mold(die)
plastic extruder profile dies products
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Blowing mold: injection blow, extrusion blow, stretch blow, etc.
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Plastic molds
• Blowing mold
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Die casting mold
die casting machine (hot chamber) die casting machine (cold chamber)
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Die casting mold
die casting molds aluminum parts zinc parts
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Die casting mold
• Aluminum alloy die casting
School of Mechanical EngineeringMold Design
Mold & Die
Classification– Forging mold
open die forging
impression die forging
School of Mechanical EngineeringMold Design
Mold & Die
Application example– Parts in automobiles
• Plastic mold, press die, die casting mold
School of Mechanical EngineeringMold Design
Mold & Die
Application example– Parts in automobiles
• Plastic mold: bumpers, dashboards, and so on
School of Mechanical EngineeringMold Design
Mold & Die
Application example– Parts in automobiles
• Press mold: sunroof, seat belt, bracket, and so on
School of Mechanical EngineeringMold Design
Mold & Die
Application example– Parts in automobiles
• Die casting mold: engine parts