introduction to net-shape manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2...

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2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to Net-Shape Manufacturing

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Page 1: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Introduction to Net-Shape Manufacturing

Page 2: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Introduction to Net-Shape Manufacturing

An example

Page 3: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Introduction to Net-Shape Manufacturing

Geometrical ParametersTool geometry

Workpiece geometry

Process ParametersDie and tool motion

TemperatureLubrication

Material

Material ParametersWorkhardening

Strain rate sensitivityAnisotropy

Temperature

INPUT

PROCESS MODELING

Process Analysis And Optimization

Loads, energies, stresses, strains, temperature,

metal flow (geometrical change)

Primary product Requirements

Forming limits

Secondary product requirements

Tolerance, surface property etc.

Equipment

Capacity limitations

CONSTRAINTS

OUTPUT

Determination of process

geometry and process

performance

condition

Page 4: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Analysis and control in Metal Forming

• Metal flow• Forging load• Forging energy

Flow stress/Forge ability

Frictionconditions and

coefficient

Data onbillet material

Ram velocity

Billet/forginggeometry

volume, thickness

Die temperature,cooling

Interface,lubrication

Strain rate

Contact timeunder pressure

TemperatureDistribution in

forging

Page 5: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Machined part geometry transfer

via IGES

Forging design

Finisher design

Blocker design

FEM simulation

Modificationneeded

CNC machinethe dies

Preliminary design

VerificationAlpid system

Alpid system

Expert system

CAD/CAM procedure of forging die design

Page 6: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape Manufacturing

사출성형 CAE S/W의 이용

경험과 직관에 의존

제품 DESIGN 설계, DRAWING

금형제작

시사출 금형수정

수정사항 선정

양산

O.K

-Delivery system-Cooling channel

layout

-사출조건

Yes

No

- 기존사출성형의 제품생산 Flow

Mechanical EngineeringYonsei University

Page 7: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape Manufacturing

- CAE가 적용된 사출성형의 제품생산 Flow제품 DESIGN 설계, DRAWING

CAE Simulation-Delivery system-사출조건-Cooling channel layout

금형제작

시사출

O.K

Simulationagain?

금형수정

수정사항 선정

-금형수정에 필요한 시간, 비용의 절감

-우수한 품질의 제품생산 가능

양 산Yes

Yes

No

No

Mechanical EngineeringYonsei University

Page 8: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape Manufacturing

Bonding and Packing

Schematic illustrations of IC packing

Chip-on-board attachment

Mechanical EngineeringYonsei University

Page 9: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape Manufacturing

Transfer-molding Press Schematic

Mechanical EngineeringYonsei University

Page 10: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape Manufacturing

Runner design

Mechanical EngineeringYonsei University

Parting Line

Primary Runner

Sect. A-A

Optimum Cross Section

Bottom Half of Mold

Sect. B-B

Top Half

Bottom Half

Gate

Primary Runner

L.F.

Secondary Runner

Page 11: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Page 12: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Page 13: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University

Page 14: Introduction to Net-Shape Manufacturingnanomolding.yonsei.ac.kr/lecture/2011_2정형생산...2011-2 Net-Shape Manufacturing Mechanical Engineering Yonsei University Introduction to

2011-2 Net-Shape ManufacturingMechanical EngineeringYonsei University