Machining method for multi-corrugation spring oil tank of large hydropower unit

The invention discloses a machining method for a multi-corrugation spring oil tank of a large hydropower unit. The machining method comprises the steps of rough turning, UT flaw detection, half finished turning, boring, outline finished turning, corrugation rough turning, corrugation finished turning and polishing ending. According to the method, a high-speed steel fluting cutter and an arc alloy cutter are used to machine a spring oil tank corrugation area, the machining quality of a product can be guaranteed, and the machining efficiency is improved. The machining method for the multi-corrugation spring oil tank of the large hydropower unit is enriched and has the characteristics of being easy to popularize, high in universality, short in production period and low in cost. 本发明公开了种大型水电机组多波纹弹簧油箱的加工方法。其步骤为，粗车-UT探伤-半精车-镗孔-外形精车-波纹粗车-波纹精车-抛光收尾。该方法使用高速钢开槽刀具和圆弧合金刀具加工弹簧油箱波纹区域，可保证产品加工质量，提升加工效率。该方法丰富了种大型水电机组多波纹弹簧油箱的加工方法。本发明具有易于推广、通用性强、生产周期短、成本较低的特点。