分析齿轮精锻工艺、设计制坯模具和计算毛坯尺寸时,需要计算出轮齿的体积及不同节锥距处轮齿截面的大小和变化情况。这些数值的大小与齿轮的全部参考数有关,计算比较复杂。过去多系粗略估计,再经反复试验、修改后确定。本文通过分析,建立了精确计算直齿锥齿轮轮齿体积以及沿齿长方向各载面面积的数学模型;编出了在TQ- Analysis of gear forging process, the design of blank mold and calculate the blank size, you need to calculate the size of the gear teeth and different sections of the gear pitch section of the size and changes. The magnitude of these values ​​is related to the entire reference number of the gear and is more complicated to calculate. In the past a few rough estimates, and then after repeated tests, revised to determine. In this paper, a mathematical model is established to accurately calculate the tooth volume of spur bevel gears and the area of ​​each load along the tooth length.