The signal in the nature ofsingularity is always caused by mechanical fault of CNC machine tool. It is important to recognize the singularity correctly for mechanical fault diagnosis. This paper deals with the wavelet t ransform and the relation between the modulus maxima and the singularity detection, and based on the excellent property of the Hermitian wavelet, poses the conception that appli...

(Adaptive Control Constrains (ACC) as applied to machine tool systems refers to the regulation of the cutting process characteristics such as spindle power, cutting force etc., by varying the only changeable process parameters which are feedrate and cutting speed. Even a simple ACC system, as in this case, in which the cutting force is regulated by changing the feedrate, is quite complex. Exper...

This paper is concerned with optimization of surface roughness when drilling of stainless steel SS304 with HSS drill. This study included drilling of SS304 with supply of Sic abrasive having grain size 650 and 1250 mesh size through abrasive slurry system. Abrasives not only used for cooling purpose but also increases the surface finish, MRR and reduce tool wear. Experiments were conducted on a...

Hydrostatic thrust bearings are the core part of hydrostatic spindle, which is widely used in high precision grinding machines. In this paper, viscosity-temperature (v-t) characteristics oil systematically investigated, essential for improving performance bearing and spindle working at pressure rotational speed. Based on computational fluid dynamics (CFD) simulation developed, variation rules s...

The ring spinning system is a that continuously spins yarn and winds bobbins. This yarn, after leaving the delivery rollers, takes twist of rotating spindle traveler, wound onto bobbin, which goes as overlapping on spindle. degree weight in mills increases. On top that, one reasons working at its higher speeds to improve production rates process competitive environment development. evaluation s...