基于响应面分析的软磨料水射流清洗工艺优化OA北大核心CSTPCD

In order to optimize the water jet cleaning technology of degradable soft abrasive,based on the response surface method,a regression model of the cleaning rate,specific energy consumption and surface roughness of soft abrasive water jet cleaning and remanufactured parts on jet pressure,standoff distance,abrasive concentration and feed rate was established,and the experimental verification was carried out;the interaction between parameters of remanufactured parts for soft abrasive water jet cleaning on the cleaning performance were studied and optimized.The results indicate that:on the premise of ensuring that the part base is not damaged,two sets of optimization criteria are formulated with low specific energy consumption and high cleaning rate as the objectives,for example,when the low specific energy consumption is the optimization goal,when the jet pressure is 112 MPa,the standoff distance is 65 mm,the abrasive concentration is 7%,and the feed rate is 2.1 m/min,the minimum cleaning specific energy consumption is 0.134 kW·h/m2 and the maximum cleaning rate is 85.216 mm2/s,and when the high cleaning rate is taken as the optimization goal,when the jet pressure is 139 MPa,the standoff distance is 80 mm,the abrasive concentration is 5%,the feed rate is 1.8 m/min,the maximum cleaning rate is 104.435 mm2/s,and the minimum cleaning specific energy consumption is 0.153 kW·h/m2.The research results can provide reference for the optimization of soft abrasive water jet process cleaning parameters.