众泰5008白车身制造工艺

车辆工程专业毕业论文，论文编号:JX949  论文字数:19791.页数:44

摘  要

 在汽车100多年的发展历史中，汽车车身经历的变化最多。目前世界汽车工业中研究最活跃、发展最迅速的领域之一就是汽车车身工程。车身的制造对汽车企业的整车生产能力有重要影响。汽车白车身是汽车其他零部件的载体，是以“钢结构”为主的支撑部件。就轿车车身的设计成本而言，约占整车总成本的一半。它通常由300至500个形状复杂的薄板冲压零件，在55~75个工位上大批量、快节奏的焊接而成。生产时，装夹定位点多达1700~2500个，焊点多达4000~5000个。白车身焊接质量的优劣对整车质量起着决定性作用。
 如何改进白车身焊接工艺和提高质量已经成为汽车制造的一项重大课题。本文将从白车身制造过程中的焊接工艺、装配、检验、工艺优化和质量管理等方面展开论述，并结合众泰汽车焊装厂生产众泰5008车型的实际情况对工艺参数进行优化改进，并探讨引入全面质量控制（TQC）的可行性，并提出针对性的改进措施。
 关键词：白车身  焊装工艺  质量控制  存在问题  改进措施  正交实验

Abstract
 In the more than 100 years’ development of automotive history, auto body changes most. Auto body work is one of the most active in research and rapidly developing field currently in world’s automobile industry. Auto body manufacturing has a significant impact on vehicle production capacity to enterprises. Body-in-white is the carrier of the other parts, which is parts-based support based on "steel". In terms of the design cost on the car body is accounting for about half of the total cost of vehicle. It is usually constituted by 300-500 complex shape sheet metal parts, and high-volume and fast-paced welded together in 55-75 positions. When manufacturing, clamping anchor points are up to 1700-2500, and 4000-5000 as many as solder joints. The welding quality of BIW plays a decisive role in vehicle quality.
 How to improve the welding technology and quality of BIW has become a major issue of automobile manufacturing. This article will start discussion from the BIW manufacturing process of welding, assembling, testing and quality management, and process index optimization in combination with the actual situation of producing Zotye 5008 in welding-installation factory, and explore the feasibility of the introduction of total quality control (TQC), and so to make targeted improvements.
 Keywords: Body-in-white; Welding-technology; Quality control; Existing problems; Improving measures; Orthogonal experiment

目  录

摘  要 I
Abstract II
目  录 III
第一章 绪  论 1
1.1 本文研究背景 1
1.2 本文的选题依据 1
1.3 研究思路与内容 2
第二章  焊装工艺 4
2.1 工装设备 4
2.1.1 焊装夹具 5
2.1.2 焊枪 6
2.2 工艺参数 7
2.2.1 电阻点焊工艺参数 7
2.2.2 CO2气保焊主要工艺参数 8
2.3 焊接质量 9
2.4 问题及解决措施 11
第三章 工艺流程及参数优化 13
3.1 众泰汽车焊装厂情况概述 13
3.2 众泰5008白车身工艺流程 13
3.3 工艺参数优化 17
3.3.1 正交实验法简介 17
3.3.2 实验原理 18
3.3.3 实验方法 18
3.3.4 试验结果分析 20
3.3.5 结果分析 20
3.3.6 实验结果验证 21
第四章 质量过程控制 22
4.1 质量控制的发展 22
4.2 全面质量控制与其他的比较 23
4.2.1 与TPM的比较 24
4.2.2 与ISO9000族质量管理的比较 24
4.3 在焊装厂实施TQC的可行性分析 25
4.3.1 焊装厂实施TQC的SWOT分析 25
4.3.2 焊装厂实施TQC的重要性和方法 27
第五章 结论 29
致  谢 30
参考文献 31
附录A 门盖焊接总成工艺卡 32
附录B 车身骨架焊接总成工艺卡 36