
This automotive dies terminology guide provides a structured overview of stamping process terminology, stamping die components, and engineering terms used in automotive stamping production.
Understanding accurate terminology is essential for engineers, manufacturers, and buyers to ensure effective communication and efficient project execution in automotive stamping die development.
The following stamping process terminology describes key operations used in sheet metal forming:
| Term | Description |
|---|---|
| Cut | Partial separation of material along an open contour |
| Trimming (TR) | Removing excess material after forming |
| Piercing | Creating holes by separating material along a closed contour |
| Blanking | Separating a workpiece from raw material |
| Drawing | Forming a flat blank into a hollow shape |
| Bending | Deforming material into an angle or curve |
| Embossing | Creating raised or recessed features |
| Flanging | Forming edges into vertical or angled shapes |
In advanced automotive stamping die applications, controlling these processes is critical to avoid defects such as wrinkling and cracking.
Reverse drawing is a specialized forming method where material flow direction is reversed compared to standard drawing. This method helps reduce residual stress and improves forming quality.
However, it requires careful design to avoid excessive material resistance and ensure die strength.
This section introduces key stamping die components used in automotive die structures:
| Component | Description |
|---|---|
| Upper Die | Mounted on the press slider |
| Lower Die | Mounted on the press bed |
| Punch | Forms or cuts the material |
| Die | Receives the material and defines shape |
| Blank Holder | Controls material flow during drawing |
| Guide Post | Ensures alignment of upper and lower die |
| Guide Bush | Works with guide post for precision movement |
| Stripper Plate | Removes material from punch |
Proper understanding of these automotive stamping die components is essential for die design and maintenance.
In addition to process and component terms, the following engineering definitions are commonly used:
| Term | Description |
|---|---|
| Bottom Dead Center | Lowest position of the press stroke |
| Top Dead Center | Highest position of the press stroke |
| Springback | Elastic recovery after forming |
| Stroke | Distance traveled by press slider |
| Clearance | Gap between punch and die |
| Pitch | Distance between successive operations |
| Burr | Sharp edge after cutting |
| Wrinkling | Wave defects caused by excess material |
Understanding these stamping engineering terms helps improve communication and optimize die performance.
This automotive dies terminology guide provides a practical reference for engineers and manufacturers involved in stamping die design and production.
By mastering metal stamping terminology, professionals can improve communication, reduce errors, and achieve better production outcomes.
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Dongguan Changdong Tool & Die Co., Ltd. is a custom metal stamping die and stamped parts manufacturer founded in 2012. We support automotive, home appliance, electrical and industrial projects from DFM review and die design to press tryout, sample validation and metal stamping production.
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