重要 Deform 3D v5.0 切削范例.pdfVIP

Deform 3D v5.0 Documentation for 3D Machining wizard: 12/3/2003 Chapter 1 Introduction Introduction: This document details the current modeling capabilities available in TM DEFORM3D system to simulate 3D metal cutting environment in turning process. Ease of model creation, specifying the process parameters and efficient process modeling are the unique features of this system. The system can be used to model the industrial turning process, without any assumptions that are associated with orthogonal cutting conditions. These modeling procedures enable the engineer to study the process response for any change in process conditions. Cutting forces, cutting temperatures, chip shape, tool wear and tool life computations can be performed using this system. The engineer can study the effect of process parameters like, cutting speed, feed rate and depth of cut on the process response. Unlike the conventional three dimensional modeling systems, DEFORM3DTM supports a special purpose template that simplifies the model definition using the same engineering language of process engineer. For turning applications the rotating work piece and insert and it’s relation to the analysis domain are shown in Figure 1.1. Typical analysis model generated using the current system is shown in Figure 1.2. The main data requirements to model the machining process are material flow stress data for the work piece material and geometric data for the insert. The material flow stress data should cover the strain rate, strain and temperature range for metal cutting process. For most materials the typical range for strain rate is 0 - ~106, the range for strain is 0 – 5