In the field of sheet metal processing, DFM (Design for Manufacturing) is a design concept that improves manufacturing efficiency, reduces costs and ensures quality by optimizing product design.
It is actually a guiding ideology in the process of designing drawings. All problems that may arise in the manufacturing process are avoided at the drawing stage, and the feasibility of sheet metal processing technology is fully considered to avoid production problems or additional costs caused by unreasonable design. The following are the key points and practical applications of sheet metal DFM:
Core principles of sheet metal DFM
First, we need to know the core principles, which are 4 in total: simplifying the process, adapting equipment capabilities, controlling costs, and ensuring assembly. There are actually many scenarios in sheet metal manufacturing operations. Let’s take a look at the final manifestation of DFM with intuitive problems:
Optimize the bending sequence
Problem: The design requires 3 bends, but the sequence conflicts make it impossible to process.
DFM improvement: adjust the bending sequence, reduce the number of mold changes, and increase the auxiliary positioning of process holes.
Optimize the layout of hole groups
Problem: Dense small holes lead to short life and easy deformation of stamping dies.
DFM improvement: merge adjacent holes into long holes, use laser cutting instead, and reduce costs.
Reduce welding requirements
Problem: Complex welding structures are time-consuming and have low yields.
DFM improvement: Design an integrated bending structure and replace welding with snaps to improve production efficiency.
DFM implementation process
Early intervention:
Designers and process engineers collaborate to review drawings and identify potential problems.
Simulation verification:
Use software (such as AutoForm, SolidWorks sheet metal module) to simulate bending springback and stamping stress.
Prototype testing:
Make samples to verify the rationality of the design, and then adjust them before mass production.
Continuous optimization:
Collect production feedback and iteratively improve the design.
Therefore, DFM in sheet metal is a bridge connecting design and manufacturing. Through scientific design rules and cross-departmental collaboration, production risks are eliminated at the drawing stage. Of course, all professional sheet metal manufacturers on the market currently have DFM capabilities. If you have a need for large-scale customized sheet metal products, you can choose Mulan Group. Mulan Group is a professional Chinese sheet metal manufacturer with 12 years of sheet metal manufacturing experience and DFM capabilities. Currently, its cooperative customers are in more than 30 countries and regions around the world. It is a trustworthy sheet metal partner.
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