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Explanation of stamping terms

October 23, 2023

The lugs are the ear-shaped protrusions on the upper edge of the drawn part.


Feeding is to send raw materials into the mold for stamping.


Feeding device
The feeding device is a device that feeds raw materials into the mold. Common feeding devices include roller type, clamping type, hook type, etc. See related terms.


The hopper is a bucket-shaped container with an automatic directional delivery mechanism for formed stamping parts.


Bending radiu
The bending radiu is the inner radius of the bend of the stamping part.


Expanded view
The expanded view is a flat process part graphic corresponding to the formed stamping parts.


Expand Size
The expanded size is the size of the flat process piece corresponding to the size of the formed stamping piece.


Arching is the name of the phenomenon of uneven arching on the surface of stamping parts.


Wrinkling is the name of the phenomenon of wavy wrinkles produced on the flange of a deep-drawn part.


The trough is a groove-shaped channel that allows punched parts to enter or leave the mold sequentially.


Hook feeding device
The hook feeding device is a device that uses a reciprocating hook to extend into the hole to drive the raw materials into the die.


Processing documents
Part sorting is to arrange and stack the stamped parts (mostly stamped parts).


File management device
The piece sorting device is a device that sorts and stacks stamped parts.


Layout is the die design process that completes the layout drawing. Sometimes the layout diagram is also referred to as layout. See "layout diagram". Layout diagram Layout diagram is a layout diagram that describes the gradual formation process of punched parts on the strip (strip, roll) material, the final position occupied and the relationship between adjacent punched parts.


Sticky mold
Mold sticking is the name of the phenomenon where the working surface of the die is bonded to the stamping material.


Chipping edge
Edge chipping is the name of the phenomenon of small pieces peeling off the edge of the punch or die.


Minimum bending radiu
The minimum bending radiu refers to the smallest bending radius that can be successfully bent.


Take the edge
Overlap is the minimum distance between adjacent punched parts outlines in the layout diagram, or the minimum distance between the punched parts outline and the edge of the strip.


Collapsed angle
The sagging angle has two meanings. One refers to the phenomenon that the outer edge of the blanking part is rounded near the concave die surface or the inner edge is close to the punch surface. The other refers to the height of the part where the cross section of the blanking part has a sagging angle.


Slumped surface
The sag surface is the plane of the blanking part with a sag edge, that is, the opposite side of the burr surface.


Trial mold
Mold trial refers to the experimental stamping performed after the mold assembly is completed to assess the mold performance and stamping quality.


Roller feeding device
The roller feeding device is a device that uses pairs of rollers to clamp the raw materials and feed them into the die. The material is fed by the periodic rotation of the rollers.