Data Base
Database for the CAPP system has various layers which store the following information :
- Part material, hardness, strength
- Empirical constants/Tables for bend allowance
- Design check rules
- Press/Die specifications
- Standard punch/die elements
- Vendor data, costs
Various sheet metal CAPP systems for blanking, piercing, bending have been developed by industries/academic researchers which cater to differing capabilities, specifications and part/process domains.
It has been generally reported that compared to manual process planning and die design, CAPP systems significantly reduce the lead time from months to weeks and provide optimum die design. CAPP systems provide output in terms of Die drawings, BOM, cost estimation. CNC part programs help in the rapid productionisation of dies required for today's competitive manufacturing scenarios.