Design points and optimization methods for sheet metal parts
Estimated reading time: 2 minutes, 9 seconds
1 Key points of overall design of sheet metal parts
1）Avoid external and internal sharp corners
Safety considerations: sharp corners on the outside of sheet metal can easily cause operators or users to cut their fingers.
Stamping mold factor: The sharp corners of sheet metal correspond to sharp corners on the mold. The sharp corners on the concave die of the mold are difficult to process, and at the same time, they are extremely easy to crack during heat treatment, and the sharp corners are easy to collapse and wear out too quickly during punching, resulting in lower die life.
2）Avoid overly long cantilevers and narrow slots
3）Size of sheet metal punching holes
4) Pitch and hole edge distance of sheet metal punching
The small size of the corresponding cam die on the stamping mold, low strength, short die life, and the excessively long cantilever may also cause the waste of sheet metal materials.
5) Avoid holes too close to sheet metal bending edges or forming features
6) Avoiding too small punching gap or even material interference after sheet metal unfolding
2 Sheet metal bending design
1）Height of bending
If the height of sheet metal bending is too low, the bending area will be easily distorted and deformed, and it is not easy to get the ideal part shape and the ideal dimensional accuracy.(Depends on the thickness of Material)
2）Bending Radius
To ensure the bending strength, the sheet metal bending radius should be greater than the minimum bending radius of the material
3）Bending direction
Sheet metal bending as perpendicular to the fiber direction of the material as possible
(4) to avoid the bending root can not be pressed material and cause bending failure
5) Avoid bending interference
6）Ensure bending strength
7) Avoid complex bending
3 Design methods to improve the strength of sheet metal parts
1) Avoid the design of flat plate
2) Adding reinforcement
3）Increase bending, turning or backfolding and flattening
4) Add triangular reinforcement at the bend
5) Bending edge self-riveting or by pulling the nail and other ways to connect into one
4 Design to reduce the processing cost or material cost of sheet metal parts
1）Rational design of sheet metal shape and improved utilization of sheet metal materials
2）Reduction of sheet metal part external dimensions
3）The shape of the sheet metal parts is as simple as possible
4）Rational use of sheet metal structure to reduce the number of parts
Sheet metal bending by using PROLEAN’TECHNOLOGY.
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Post time: Mar-31-2022