In wuxi stretch in the cost of production, material utilization ratio is about more than 60%.
So the material utilization rate of the economy as a whole is very important.
And early in the design, drawing a layout refers to the parts in stock or arrangement is put on the sheet metal, want to save materials, reasonable layout is particularly important.
Unreasonable layout will cause the material waste, layout rationality is one index measured material utilization.
Can reduce the waste area even reach the purpose of no waste, high material utilization.
Make wuxi (tensile, waste can be divided into: the structure and process waste both;
Stretch on and remaining material called process waste, this is the layout form and stretch the stamping way about waste;
Structural waste, is determined by the shape characteristics of tensile, generally does not change.
So only reasonable layout scheme design, reduce the tensile process of waste, to improve the material utilization.
Make wuxi stretch layout is reasonable, not only affect the economic use of materials, and also affect the quality of the tensile, mould structure and mould to adapt to the life, stretching pieces of productivity and the mould cost and other technical indicators such as economic costs.
Economic and reasonable layout can improve material utilization, is advantageous for the staff production operation, improve the service life of drawing die, etc.
So make wuxi stretch layout can follow the four principles: improving tensile pieces of material utilization, improve operational feasibility, simplify the mould structure to improve life, on the premise of guarantee the quality of tensile).
Layout is the most fundamental guarantee the quality of tensile), not only consider the utilization rate of materials, regardless of tensile performance.
For a more complex blanking, such as bending parts when layout consider the grain direction of sheet metal.
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