摘要热处理过程的计算机模拟已成为当今热处理过程研究和热处理工艺设计中必不可少的重要方法。针对大型轴类锻件热处理过程，本文在大型锻件传热分析的基础上，建立了大型轴类锻件的物理模型，采用三维有限元方法进行温度场及应力场数值模拟与仿真，分析大型锻件热处理过程中温度及应力应变的分布与变化规律，从而研究热处理工艺对锻件组织及性能的影响规律。该数值模型对研究和分析大锻件任一时刻、任一位置的温度、组织和应力的变化情况有着重要的实践指导意义。进而说明了热处理过程数值模拟方法的准确性和优越性，为进一步分析此类件的转变和应力应变等奠定了基础，为大型锻件的热处理工艺的合理制定提供了有效的理论依据。67486

毕业论文关键词  轴类锻件  热处理  数值模拟

毕业设计说明书（论文）外文摘要

Title  Wind power spindle numerical simulation of heat treatment processes and technology research   

Abstract

Computer simulation of heat treatment process has become the process of heat treatment and heat treatment process design indispensable method.

To heat treatment process for large shaft forging, the paper based on the heat transfer analysis in large forgings, has established of large-scale physical model of shaft forging, using three-dimensional finite element method for temperature field and stress field numerical simulation, got an analysis of the distribution and variation law of temperature and strain of large forging heat treatment process, and studying the influence of process parameters on heat treatment and properties of the forgings organization. The numerical model for the study and analysis of large forgings at any one time, the temperature of any location, organizational changes and stress has important practical significance, get further description of the heat treatment process of numerical simulation accuracy and superiority, in order to further analyze such changes and stress and strain components such as laying the foundation for large forgings and reasonable development of heat treatment process provides an effective theory.

Keywords   Axial forgings  Heat treatment  Numerical simulation

目  次

1  绪论 1

1.1  概述 1

1.2  大型锻件的热处理工艺研究现状 1

1.2.1  锻件的热处理工艺方法 1

1.2.2  热处理工艺的重点及发展展望 2

1.3  热处理过程数值模拟研究概况 3

1.3.1  国内外研究概况 3

1.3.2  数值模拟在热处理中的应用 3

1.4  DEFORM 有限元软件介绍 4

1.5  本课题研究的意义及研究内容 5

2  大型轴类锻件热处理过程有限元模型建立 6

2.1  大型轴类锻件热处理工艺过程分析 6

2.1.1  热处理过程的特点 6

2.1.2  轴类锻件模型 7

2.1.3  热处理工艺及分析 8

2.2  大型轴类锻件热处理过程数值模拟方法 10

2.3  大型轴类锻件温度场有限元模型建立