... signals using the available physics-based model, which makes it difficult to identify the tool life stages. The present study highlights the wear pattern and life stages of a polycrystalline diamond tool (PCD) during micro-grinding of BK7 glass. Based on the time and frequency domain cutting force...

... the cylindrical cathodic arc physical vapor deposition (PVD) technique. The as-deposited films were comprehensively analyzed to determine their adhesion strength, phase composition, sliding wear properties (friction coefficient), hardness, and tool life. Preliminary observations revealed that the films did...

... tool life, the induced tensile stresses should be reduced substantially. One way to reduce the tensile stresses is to employ a second stress ring. This will, however, increase the size of the die assembly. As shall be discussed in Sec. 4 , the proposed methodology of manipulating the elastic strain...

...Jiarui Wang; Ming Luo; Ke Xu; Kai Tang Short tool service life is always a major concern when milling hard materials, such as Ni-based superalloy. In the current research of tool life optimization in multi-axis machining of freeform surfaces, the focus is mostly on choosing suitable cutting...

... cooling can significantly improve tool life. 1 Corresponding author. Manuscript received April 30, 2018; final manuscript received December 14, 2018; published online January 4, 2019. Assoc. Editor: Karl R. Haapala. 30 04 2018 14 12 2018 cryogenic machining tool life...

... were compared. The results strongly demonstrate that heat-pipe assisted cooling in drilling processes can effectively perform thermal management comparable to the fluid cooling used pervasively in the manufacturing industry, consequently offering the tool life extension. tool life heat-pipe...

... in burr size was achieved with the complimentary sequential drilling technology. Additionally, when compared with purely mechanical microdrilling, the new drilling method resulted in 240–430% tool life increase. Thus, the new drilling method presents an opportunity for industry to extend tool life...

...D. K. Sarma; U. S. Dixit A number of experiments was conducted on the dry and air-cooled turning of steel with TiN coated carbide tool, and Weibull distribution was fitted on the tool life data. It is observed that the tool life (based on surface roughness) in dry turning is more than that in air...

... of small twist drills is determined, first, by their deep-hole drilling capability, i.e., in how far the cutting forces can be kept at a noncritical level by maintaining the chip disposal, and, second, by their tool life. This work shows that both the deep-hole drilling capability and tool life of small...