Two-stage stamping of cold drawn magnesium
alloy cup having small bottom corner.
6.
Multi-stage stamping of tailor square blank for
increase in wall thickness at bottom corner of
square cup.
5.
Multi-stage stamping of high strength steel wheel
disk having large inner corner thickness.
4.
Two-stage stamping of tailor circular blank for
increase in wall thickness of wheel disk.
3.
Multi-stage stamping of wheel disk having large
inner corner thickness by means of conical punch.
2.
Introduction.1.
ContentsChapter
A study of sheet metal stamping processes
of lightweight parts
February 2008 Tan Chin Joo
Chapter 1 Introduction
Flat
Small
thickness: low
strength
Local
thickening
Large thickness:
high strength
Stamping
Tailor rolled blank
Long welding lines &
high material loss
Tailor welded blank One-dimensional distribution
Control of thickness distribution of stamped products for
reduction in weight
Proposed method for reduction in weight
Small thickness blank
Welding lines
Lightweight
Forming of lightweight material for
reduction in weight of parts
•Density : 1/4 of mild steel
• Specific strength : 2 times of mild steel
Advantages
• Low formability at room temperature
• Formed at elevated temperature
• Heating apparatus is expensive and
complicated
Disadvantages
Magnesium alloy
Two-stage stamping of cold drawn magnesium
alloy cup having small bottom corner.
6.
Multi-stage stamping of tailor square blank for
increase in wall thickness at bottom corner of
square cup.
5.
Multi-stage stamping of high strength steel wheel
disk having large inner corner thickness.
4.
Two-stage stamping of tailor circular blank for
increase in wall thickness at inner corner at inner
corner of wheel disk.
3.
Multi-stage stamping of wheel disk having large
inner corner thickness by means of conical punch.
2.
Introduction.1.
Contents
Chapter
A study of sheet metal stamping processes
of lightweight parts
Chapter 2
Multi-stage stamping of wheel disk having large
inner corner thickness by means of conical punch
Steel Wheel
Welding
Roll forming
Bending, welding
Multi-stage stamping
Blanking
Disk forming Rim forming
Forming process of steel wheel