This paper get mathematics model of optimal design of[ color= Red] arbor[/ color] with optimal object of minimum weight of arbor, and set up constraint condition by strength, stiffness and technical requirement of[ color= Red] arbor[/ color].

• 本文以镗刀杆质量最轻为优化目标，根据镗刀杆强度、度和工艺要求建立约束条件，得到镗刀杆优化设计的数学模型。