CAJ | 학술논문

为改善连杆裂解槽加工精度和质量,进而提高裂解连杆的成品率,通过试制两种连杆产品,确定了激光加工参数.采用Nd∶YAG固体激光器对两种类型的连杆进行了裂解槽激光加工试验,分析了采用不同切割参数加工的裂解槽质量,并对激光切割参数进行了优化.结果表明:激光峰值功率、离焦量、切割速度、脉冲频率、辅助气体压力、激光入射角等对裂解槽的加工质量均有很大的影响,其中激光峰值功率2.4 kW,脉冲时间0.4 ms时,切槽深度为0.453～0.457 mm,当脉冲频率与切割速度比值约为3,在非正离焦量状态下,所加工的裂解槽对连杆的裂解非常有利,能够满足M0406连杆的裂解质量要求.
위개선련간렬해조가공정도화질량,진이제고렬해련간적성품솔,통과시제량충련간산품,학정료격광가공삼수.채용Nd∶YAG고체격광기대량충류형적련간진행료렬해조격광가공시험,분석료채용불동절할삼수가공적렬해조질량,병대격광절할삼수진행료우화.결과표명:격광봉치공솔、리초량、절할속도、맥충빈솔、보조기체압력、격광입사각등대렬해조적가공질량균유흔대적영향,기중격광봉치공솔2.4 kW,맥충시간0.4 ms시,절조심도위0.453～0.457 mm,당맥충빈솔여절할속도비치약위3,재비정리초량상태하,소가공적렬해조대련간적렬해비상유리,능구만족M0406련간적렬해질량요구.
In order to improve the processing precision and quality of a connecting-rod splitting notch and to improve its manufacturing yield, two kinds of connecting-rod products were manufactured and laser processing parameters were also determined. The splitting notch processing on two kinds of connecting rods was carried out by a Nd∶YAG solid laser and then the influence of different cutting parameters on the cutting quality was analyzed and the laser cutting parameters were optimized. The result shows that the laser peak power, clearance between focus and plate, cutting speed, impulse frequency, assistant air pressure, and the angle of laser incidence have a great influence on the processing quality of splitting notch. When the peak power of laser is 2.4 kW and the impulse time is 0.4 ms, the depth of cutting notch is 0.453-0.457 mm. Moreover, when the ratio between impulse frequency and cutting speed is 3, the splitting notch processed is conductive to the splitting of connecting rod in the condition of the minus clearance between focus and plate, which can meet the demand of the splitting quality of M0406 connecting-rods.