Traditionally, abrasive finishing process focus on producing excellent surface finish on regular form shapes. Ever increasing demands in freeform features in aerospace, energy and medicine industry requires abrasive finishing technology not only provides excellent surface finish but also is capable to correct the errors on freeform surfaces. The paper presents current development of corrective ...

Problem statement: Single Point Diamond Turning (SPDT) is highly deterministic and versatile in producing various forms of precise optics. A typical example is the production of large offaxis aspheric mirrors and various infrared mirrors and mandrels. However, the fine periodical turning marks left in the surface critically limit its performance and they are difficult to be avoided for traditio...

In this study, the effects of process parameters on the geometrical characteristics and the topography were investigated in milling of SS304 material using Abrasive Water Jet machining technique. In addition, optimal control of the input variables for achieving the quality of the channel was determined by using Grey relational analysis. The input process parameters include traverse speed, abras...

Abstract Diamond-like carbon (DLC) coatings protect engine parts from wear and provide low-friction. Unfortunately, the nature of DLC does not allow progressing measurement using conventional methods. Therefore, we applied a radioactive isotope-based method (RIC method). A tribometer with oscillating contact one sliding were used to different loading conditions. The RIC was evaluated for coatin...

• Theoretical model is proposed for predicting compressive residual stress in abrasive waterjet peening. Abrasive sizes, spatial position, and velocity distribution beam are considered prediction model. Material work hardening multiple overlapping impacts. on the workpiece depends number of peening, traverse speed, jet centre distance. Distribution predicted based peening surface topography. (A...