Cutting tool texturing is considered beneficial during the machining process because it could act as lubricant reservoirs to supply extra lubricant and help to entrap the wear debris, which results in the reduction of friction and tool wear. However, due to the exorbitant cost associated with laser-based tool texturing and difficulty in generating precise texture geometry in micro-inserts using alternate methods, the application of tool texturing in micromachining has not gained much popularity. This paper proposes a methodology utilizing mechanical micro indentations for generating microtextures on the flank face of the micro-turning inserts. Square pyramid-shaped micro indentations are made on the flank face of coated tungsten carbide inserts using Vickers microhardness tester. The proposed method eliminates the issue of coating delamination observed in other tool texturing approaches. Micro-turning experiments under Minimum Quantity Lubrication (MQL) conditions are performed on Ti-6Al-4V alloy, and the machining performances are analyzed to evaluate the effectiveness of the proposed methodology. Mechanical micro indentation textured inserts showed a reduction of 21% in cutting forces, 6% in surface roughness, 7% in cutting temperature and 19% in tool flank wear compared to non-textured inserts. The proposed method is observed to be promising, and the process improvement is found to be comparable with alternate approaches of tool texturing reported in the literature.

切削工具的纹理化在加工过程中被认为是有益的，因为它可以充当润滑剂储存器以提供额外的润滑剂并帮助截留磨损碎片，从而减少摩擦和减少工具磨损。但是，由于与基于激光的工具纹理化相关的成本过高，以及难以使用替代方法在微嵌件中生成精确的纹理几何形状，因此工具纹理化在微加工中的应用尚未获得广泛普及。本文提出了一种方法，该方法利用机械微压痕在微车削刀片的侧面产生微纹理。使用维氏显微硬度测试仪在涂层的碳化钨刀片的侧面上形成方形金字塔形的微压痕。所提出的方法消除了其他工具纹理化方法中观察到的涂层分层问题。在最小量润滑（MQL）条件下对Ti-6Al-4V合金进行了微车削实验，并分析了加工性能以评估所提出方法的有效性。与无纹理的刀片相比，机械微压纹纹理刀片的切削力降低了21％，表面粗糙度降低了6％，切削温度降低了7％，刀具侧面磨损降低了19％。所提出的方法被认为是有前途的，并且发现工艺改进与文献中报道的工具纹理化的替代方法相当。并分析了加工性能，以评估所提出方法的有效性。与无纹理的刀片相比，机械微压纹纹理刀片的切削力降低了21％，表面粗糙度降低了6％，切削温度降低了7％，刀具侧面磨损降低了19％。所提出的方法被认为是有前途的，并且发现工艺改进与文献中报道的工具纹理化的替代方法相当。并分析了加工性能，以评估所提出方法的有效性。与无纹理的刀片相比，机械微压纹纹理刀片的切削力降低了21％，表面粗糙度降低了6％，切削温度降低了7％，刀具侧面磨损降低了19％。所提出的方法被认为是有前途的，并且发现工艺改进与文献中报道的工具纹理化的替代方法相当。