. Numben in parentheses refer to I.iterl~e Cited. Report of study of the peripheral-milling process of planing lumber. Relationships were determined between cutterhead horsepower and various combinations of specimen, cutterhead, and feed factors. Power demand curves are interpreted by comparison with simultaneous one micro-second photos of chips. Secondary consideration is given to quality of s...

The aim of this project is to develop methods for scaling up roller compaction process from lab scale to pilot scale, to determine the effect of processing parameters of roller compactors at both lab scale (instrumented roller compactor at University of Birmingham, micro-pactor at Pfizer) and pilot scale (mini-pactor from Gerteis) on the attributes of dry-granulated formulations, including the ...

Micro- and nano-patterned fluorescent materials are important for many photonic devices and applications. In this paper, we investigate the impact of three common lithographical techniques, deposition and removal of sacrificial masks, ultraviolet ablation, and focused ion beam milling, on self-assembled fluorophores. We find that different patterning techniques can dramatically change the fluor...

Microand nanomachining of diamond using focused ion beam (FIB) continues to generate interest in applications such as diamond anvil cells, photonic devices, micro-cantilevers and tools for imprinting applications [1,2]. However, the milling rate of diamond by FIB is approximate 4X slower when compared to silicon using 30 kV Ga FIB [3]. Recent instrumentation using PFIB technology and Xe ions of...

INTRODUCTION Recently, a milling for die using a small end mill of diameter less than 1 mm is increased, because sizes of plastic mold parts such as connectors for an IT and an electronics becomes micro extremely. In general, a tool life is long and a good cut surface is obtained as a cutting speed is high. A speed-increasing spindle, which is attached to a shank may be used to increase the cut...

This article presents an experimental investigation on ductile-mode micro-milling of monocrystalline silicon using polycrystalline diamond (PCD) end mills. Experimental results indicate that the irregular fluctuation of cutting force always induces machined surface failure, even in ductile mode. The internal mechanism has not been investigated so far. The multiscale discrete dislocation plastic...

High aspect ratio diamond nanocone arrays are formed on freestanding diamond film by means of focused ion beam (FIB) milling technology and hot-filament chemical vapor deposition (HFCVD) method. The structure and phase purity of an individual diamond nanocone are characterized by scanning electron microscopy (SEM) and micro-Raman spectroscopy. The result indicates that the diamond cones with hi...

Currently, the standard material used for micro end mill tooling is sintered tungsten carbide with a cobalt binder. Its brittle nature coupled with the micro-scaled cutting features of the end mills often result in rapid tool degradation. Tool life and cutting performance can be significantly improved using a thin nanocrystalline diamond (NCD) coating. The high hardness (~90 GPa), low coefficie...

A way of measuring the in situ high temperature creep deformation of a micro-structure with a metal film wire on a flexible membrane is developed. The creep deformation measurement of a micro-structure with a Karma alloy wire on a polyimide membrane is used as an application. High temperature gratings were fabricated directly on the surfaces of two Karma alloy wires using the focused ion beam m...