نتایج جستجو برای: machining

تعداد نتایج: 12375  

2017
Julian Ricardo Diaz Posada Ulrich Schneider Arjun Sridhar Alexander Verl Dan Zhang

Optimal and intuitive robotic machining is still a challenge. One of the main reasons for this is the lack of robot stiffness, which is also dependent on the robot positioning in the Cartesian space. To make up for this deficiency and with the aim of increasing robot machining accuracy, this contribution describes a solution approach for optimizing the stiffness over a desired milling path usin...

2014
K. B. RAI

Wire EDM is one of the latest advanced micro-machining techniques, where a thin wire (Ǿ= 0.25 mm) of tool electrode is fed on the work piece which gradually shears off the material during the machining process. This micro-machining process may help overcome the limitations and restriction faced during conventional mechanical machining process. This paper is based on wire-EDM machining of a part...

2016
Sachin Ghalme Ankush Mankar Y J Bhalerao

INTRODUCTION Optimization of machining parameters is essential for improving expected outcome of any machining operation. CASE DESCRIPTION The aim of this work is to find out optimum values of machining parameters to achieve minimal surface roughness during milling operation of GFRP. DISCUSSION AND EVALUATION In this machining operation speed, depth of cut and feed rate are considered as pa...

2003
W. I. Clark C. W. Hardin

The process monitoring and mechanics of fixed abrasive diamond wire saw machining are investigated in this study. New techniques to affix diamond particles to a steel wire core have advanced to make this process feasible for the machining of ceramics, wood, and foam materials. Developments in fixed abrasive diamond wire machining are first reviewed. Advantages of using fixed abrasive diamond wi...

2009
S. Q. Xie J. Gan G. Gary Wang

This paper investigates the nesting issue and the machining path planning issue for improving the sheet metal machining efficiency. The nesting issue is to maximise sheet metal material utilisation ratio by nesting parts of various shapes into the sheet. The path planning issue is to optimise machining sequence so that the total machining path distance and machining time are minimised. This wor...

Journal: :Computer-Aided Design 2016
Jikai Liu Huangchao Yu Yongsheng Ma

This paper presents a minimum void length scale control method for structural topology optimization. Void length scale control has been actively investigated for decades, which intends to ensure the topology design manufacturable given the machining tool access. However, only a single lower bound has been applied in existing methods, which does not fit the multi-stage rough-to-finish machining....

2012
S. Wang C. H. Li

Abrasive machining is a widely employed finishing process for different materials such as metals, ceramics, glass, rocks, etc to achieve close tolerances and good dimensional accuracy and surface integrity. High efficiency abrasive machining is one of the important techniques of advanced manufacture. Combined with raw and finishing machining, it can attain high material removal rate like turnin...

Journal: :CoRR 2010
Xavier Pessoles Yann Landon Walter Rubio

Machining time is a major performance criterion when it comes to high speed machining. CAM software can help in estimating that time for a given strategy. But in practice, CAM programmed feed rates are rarely achieved, especially where complex surface finishing is concerned. This means that machining time forecasts are often more than one step removed from reality. The reason behind this is tha...

2010
R. N. Ahmad M. N. Derman M. Marzuki

The main goals of wire electrical discharge machining (WEDM) manufacturers and users are to achieve a better stability and high productivity of the manufacturing process. The investigation on machinability of Aluminium Matrix Composite (AMC) using Wire-cut Electric Discharge Machining (WEDM) machine is constructed. The aim of this project to determine the most optimum machining parameter that w...

2012
Saeed Daneshmand Reza Hessami Habib Esfandiar

Shape memory alloys are kind of smart materials, which have distinctive properties and are superior in compare with other alloys. Severe reactions to thermodynamic and mechanical parameters and ability to return to their original shape make these alloys distinctive from other alloy regarding machining ability. Since these alloys have a very useful application in various fields such as aerospace...

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