Green manufacturing demands least wastage. Minimum chip formation reduces adverse effect on environment. Nose radius has a major role in reducing development of chips. Selection of proper nose radius and machining parameters will reduce amount of chip, therefore protect the environment. In finish turning of Al alloy-SiC, nose radius wear mainly affect the surface feature of the final product. It is owing to the direct contact between the area of tool nose and the SiC particles during turning. This paper is focused on influence of tool nose radius and machining parameters on surface quality of AA7075/15 wt.% SiC (20 - 40 μm) composites and tool life of tungsten carbide inserts while dry turning. Response surface method (RSM) was utilized to find the roughness and tool life under numerous turning situations. Considering the single objective optimization of turning parameters, minimum roughness of 2.088 μm, was achieved at nose radius of 1.2 mm and maximum tool life of 6.72 min, was obtained at nose radius of 0.4 mm. Multi objective optimization by desirability analysis for minimum roughness and the maximum life of tool has shown that suitable value of nose radius is 0.4 mm. Multi objective optimization of both roughness of surface and life of tool results in 1.81% increase in surface roughness and 10.11% decrease in tool life. Abrasion was mainly found to be responsible for wear of tungsten carbide inserts, while turning of AA7075/15 wt.% SiC (20 - 40 μm) composites. Novelty of this research work is that so far no one has investigated impact of nose radius and machining parameters on surface roughness, tool wear and tool life during turning of AA7075/15 wt.% SiC composites. Outcome of this research work will be useful for vehicle, aeroplane, space and ship industry.

中文翻译：

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机头半径和加工参数对用于绿色制造的AA7075 / SiC复合材料车削过程中的表面粗糙度，刀具磨损和刀具寿命的影响

绿色制造需要最少的浪费。最小的切屑形成减少了对环境的不利影响。鼻半径在减少切屑的产生方面起着重要作用。选择合适的刀尖半径和加工参数将减少切屑的数量，从而保护环境。在铝合金-SiC的精车削中，刀尖半径磨损主要影响最终产品的表面特征。这是由于车削过程中刀尖区域和SiC颗粒之间直接接触。本文重点研究刀尖半径和加工参数对AA7075 / 15 wt。％SiC（20-40μm）复合材料的表面质量以及干切削时碳化钨刀片的刀具寿命的影响。响应表面法（RSM）用于在许多车削情况下查找粗糙度和刀具寿命。考虑到车削参数的单目标优化，在1.2毫米的刀尖半径处实现了2.088μm的最小粗糙度，在0.4毫米的刀尖半径处获得了6.72分钟的最大刀具寿命。通过对刀具的最小粗糙度和最大使用寿命进行期望性分析的多目标优化表明，刀尖半径的合适值为0.4 mm。表面粗糙度和刀具寿命的多目标优化可导致表面粗糙度增加1.81％，刀具寿命减少10.11％。主要发现磨损是造成碳化钨刀片磨损的原因，而车削AA7075 / 15 wt。％SiC（20-40μm）复合材料。这项研究工作的新颖之处在于，到目前为止，尚无人研究刀尖半径和加工参数对表面粗糙度的影响，AA7075 / 15 wt。％SiC复合材料在车削过程中的刀具磨损和刀具寿命。这项研究工作的结果将对汽车，飞机，航天和船舶工业有用。