Shanghai Yixing Technology Co., Ltd.
Shanghai Yixing Technology Co., Ltd.
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Aluminum Shell Stamping

Classification of Compound Stamping Die Structures


According to the nature of the compound process, it can be divided into:


Punching compound mold: such as material cutting composite mold.


Forming compound molds: such as composite extrusion molds.


Compound die for blanking and forming: such as a composite die for material cutting and deep drawing.


According to its structural form, it can be divided into:


Sequential compound mold: a compound stamping die with a concave mold device in the lower mold.


Inverted compound mold: a compound stamping die with a concave mold device in the upper mold.


Comparison of Compound Stamping Die Structures:


Inverted composite mold

sequential composite mold

Leakage

From the leakage hole of the lower mold

Return to the mold working surface

Output

From the upper mold

From the bottom mold

Operation

Safe and convenient

Poor operation

Workpiece

Poor flatness

Good flatness

Stress

Poor stress and poor strength

Good stress

Wear

Relatively small

Relatively large

Working face

Easy to clean

Difficult to clean


Through the above comparison, it can be seen that their applicable range is:


1. Inverted composite molds are suitable for punching parts with low requirements for flatness and sufficient strength of convex and concave molds;


2. The sequential composite die is suitable for punching thin materials or composite dies with high requirements for flatness, insufficient strength of convex and concave dies, or without punching waste.

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