Effects of Air Jet-assisted Little Quantity Lubrication on Surface Finish and Tool Wear in Face Milling Process of Aluminium 7050-T7451

[摘要] In this paper, a new method of air jet-assisted little quantity lubrication (AJLQL) is proposed to obtain a good balance of cooling capacity, lubrication ability and application cost, and workpiece surface finish and tool wear are researched based on milling experiment of aluminium alloy 7050-T7451 on the platform of established AJLQL system. The results show that: (1) AJLQL can decrease workpiece surface roughness effectively, the degree of influence on surface roughness ranges from large to small is feed per tooth(f z), cutting fluid flowrate(Q), axial cutting depth(a p), air pressure(P) and spindle speed(n); (2) under the same other process conditions, tool flank wear of dry cutting is bigger than that of AJLQL, and the flank wear becomes less with the increase of cutting fluid flowrate, which shows the excellent lubrication effect of AJLQL.

[发布机构] College of Mechanical and Electrical Engineering, Shandong Yingcai University, Jinan; 250104, China^1

[效力级别] 无线电电子学

[关键词] Application cost;Cooling Capacity;Cutting depth;Lubrication effect;Process condition;Spindle speed;Surface finishes;Tool flank wear