Draft allowances can be incorporated into dimensional tolerances or geometric tolerances only upon consultation with the foundry. 拔模斜度余量只有经与铸造厂商定后才能合并到尺寸公差或形位公差中。
This paper analyses the relation of the tolerance, strength and rigidity of cyinder spiral spring and gives a method for calculating the tolerance of cylinder spiral spring. 在分析圆柱螺旋弹簧尺寸公差的可靠性条件和刚度的基础上提出了一个计算圆柱螺旋弹簧尺寸公差的方法。