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一引言自由锻造空气锤是一种常见的机械加工设备,其主要技术指标之一是锤头的打击能量。按部颁标准(JB1294—82)规定,用测量锤头从上向下运动至两砧块面距离为(0.0033G+3.5)Cm时锤头的速度来确定空气锤的打击能量。也可采用镦粗铅拄法测定空气锤的打击能量。多年来生产厂因没有打击能量测试仪,而不得不采取后一方法,但存在以下缺点:(1)它是一种非直接测量方法,由所测变形的大小按经验公式计算打击
An introduction Free forged air hammer is a common mechanical processing equipment, one of its main technical indicators hammer energy. According to the ministerial standards (JB1294-82) provides that the hammer from the top down to the distance between the two anvil face (0.0033G +3.5) Cm hammer speed to determine the impact energy hammer air. Upset lead Zhu law can also be used to determine the impact energy hammer air. Over the years because the factory did not hit the energy tester, and had to adopt the latter method, but the following disadvantages: (1) It is an indirect measurement method, the size of the measured deformation empirical formula to calculate the impact