The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	Computer numerical controlled (CNC) machining of screws and dies for plasticating extruders : determination of the criteria for implementing CNC machining
Author:	Desai, Nilesh H.
View Online:	njit-etd1992-069 (vii, 97 pages ~ 2.4 MB pdf)
Department:	Manufacturing Engineering Division
Degree:	Master of Science
Program:	Manufacturing Engineering
Document Type:	Thesis
Advisory Committee:	O'Brien, Keith T. (Committee chair) Levy, Nouri (Committee member) Geskin, E. S. (Committee member)
Date:	1992-01
Keywords:	Plastics -- Extrusion Machine-tools -- Numerical control Screws
Availability:	Unrestricted
Abstract:	The work of this thesis is dedicated to the manufacturing industry making production equipment to manufacture plastic products. The main theme of the thesis is to determine the criteria for implementing Computer Numerical Control machining to make parts with complex geometries for production equipment. A small manufacturing company with job shop type of production was chosen as the subject and study of extruder manufacturing process was performed. The various available alternatives of CNC manufacturing units available in the market were chosen and their feasibility examined. At present a large variety of CNC machine tools are available in the market, offered by manufacturers following different standards. This thesis is organized with the purpose of comparing various technical and economical considerations for CNC machine tool purchase and its application.