木刨刨木板时,所得刨花呈卷圆形,车刀切削金属材料时,车屑也呈卷圆形,这些都是日常中司空见惯的现象,其原因在于刀具具有斜面构成的刃口,现在冲压方面的理论书籍仅利用很小的斜面刃口来减轻压力机的负荷,或者生产后续卷圆工序的微预弯件,至于采用大的斜面刃口直接生产弯折件和卷圆件,无论在理论上还是在实践上,还 Wood Planing Planer, the resulting wood shavings were round, the turning tool cutting metal materials, the car was rolled round, these are commonplace everyday phenomenon, the reason is that the cutter has a bevel edge, and now stamping The theoretical books used only a small bevel edge to relieve the press load, or the production of micro-bending of subsequent rounds, as well as the direct production of bends and rolls with large beveled edges, In theory or in practice, still