A three dimensional (3D) fully coupled thermal-mechanical analysis is presented in order to evaluate the influence of certain cutting parameters as well as dual phase microstructure on the orthogonal micro cutting process of steels (in particular, AISI 1045 steel), for which the size of heterogeneities is of the order of magnitude of the uncut chip thickness and tool edge radius. The simulated ...

In recent years, micro/nanoscale diamond cutting tools shaped by focused ion beam (FIB) has been developed to the deterministic fabrication of micro/nano-structures owing to its unprecedented merits of high throughput, one-step, and highly flexible precision capabilities. However, the exposure of a diamond tool to FIB will result in the implantation of ion source material and the irradiation da...

This work deals with problems of tool axis inclination angles in ball-end milling. Tool axis inclination angle contributes to improvement of functional surface properties (surface integrity surface roughness, residual stress, micro hardness, etc.), decreasing cutting forces and improving production. By milling with ball-end milling tool, using standard way of cutting, when work piece and cuttin...

In nano/micro cutting process, the surface quality is heavily dependent on all the dynamic factors in machining including those from the material, tooling, cutting parameters, servo accuracy, mechanical structure deformation, and non-linear factors as well. The machined surfaces are generated based on the tool profile and the real tool path combining with the various external and internal distu...

Besides assembling, processes like drilling, cutting and pasting are required in various operations to human bodies or micro-machines. Force control is essential to those dexterous operations even in the micro world. For this purpose, a prototype micro operation hand with two fingers constrained to parallel motion linkages was developed. It uses magnetic suspension technology so that fine force...

A method is presented to improve the tool life and cutting performance of 300mm diameter tungsten carbide (WC) micro end mills by applying thin (o300nm) fine-grained diamond (FGD) and nanocrystalline diamond (NCD) coatings using the hot-filament chemical vapor deposition (HF-CVD) process. The performance of the diamond-coated tools has been evaluated by comparing their performance in dry slot m...

Aluminum alloy materials are very difficult to break in the processing process; chip accumulation leads poor stability. In this paper, a coated composite micro–textured tool is presented. The influence of on shape and cutting force under same parameters studied. Firstly, combination temperature optimized based test. Secondly, combined with finite element simulation technology, three kinds micro...