Author : Sangjin Maeng (Ph.D)
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Book Synopsis Ultra-precision Machining of Difficult-to-cut Materials with Geometric Error Compensation and Precise Tool Setting by : Sangjin Maeng (Ph.D)
Download or read book Ultra-precision Machining of Difficult-to-cut Materials with Geometric Error Compensation and Precise Tool Setting written by Sangjin Maeng (Ph.D) and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-precision machining technology has advanced recently but lacks understanding of process physics, processing technology, and peripheral technology. Research on ultra-precision machining of difficult-to-cut materials is hard to find, while demand for ultra-high precision dies and molds from those materials has increased due to their superior mechanical properties and thermal stability. Challenges in the machining of superhard materials are excessive tool wear and brittleness in cutting. Peripheral technologies are another major challenge since these are not up to the accuracy of the machine tool and thus, these became a significant bottleneck for the entire machining process. Therefore, the improvement of peripheral technologies is necessary to match the level of precision of ultra-precision machine tools, and the development of the machining technology for difficult-to-cut materials is required to achieve ductile machining with wear resistance. This study handles peripheral technologies - precise tool setting methods and geometric error compensation methods - and machining strategies - a patterned tool and a micro-grinding tool. The studies on peripheral technologies improve the form accuracy by enhancing the precision of the tool setting and correcting the geometric errors in machine tools. Engraving patterns on the rake face of an insert tool is one of the potential methods to reduce the friction coefficient between chip and tool and prolong tool life. Micro-grinding is an effective micromachining process to achieve the ductile machining and minimize tool wear. The research on micro-grinding provides the optimization of micro-grinding tool design and process conditions by understanding grinding forces. The integration of these studies leads to the improvement of the surface quality and the form accuracy in ultra-precision machining of difficult-to-cut materials with long tool life.