tailieunhanh - Guidelines To Gas Tungsten Arc Welding (GTAW)_1

Tài liệu này chứa thông tin chung về các chủ đề thảo luận ở đây. Tài liệu này không phải là một hướng dẫn sử dụng ứng dụng và không có một tuyên bố đầy đủ của tất cả các yếu tố liên quan đến những chủ đề. | Simpo PDF Merge and Split Unregistered Version - http 994 July 2003 Guidelines To Gas Tungsten Arc Welding GTAW A WARNING ARC WELDING can be hazardous. This document contains general information about the topics discussed herein. This document is not an application manual and does not contain a complete statement of all factors pertaining to those topics. This installation operation and maintenance of arc welding equipment and the employment of procedures described in this document should be conducted only by qualified persons in accordance with applicable codes safe practices and manufacturer s instructions. Always be certain that work areas are clean and safe and that proper ventilation is used. Misuse of equipment and failure to observe applicable codes and safe practices can result in serious personal injury and property damage. Ref. 161892-B Simpo PDF Merge and Split Unregistered VefSĩOlnBtltE WHW-S mP04d f-Ễ0mTS SECTION 1 - SAFETY . 1 SECTION 2 - THE TIG PROCESS. 2 2-1. What Is TIG. 2 2-2. GTAW TIG Connections. 2 2-3. TIG Advantages . 3 2-4. TIG Disadvantages. 3 2-5. AC Sine Wave. 4 2-6. Zero Crossover Area . 4 2-7. Squarewave Imposed Over A Sinewave . 5 2- 8. Conventional Squarewave AC . 5 SECTION 3 - ARC ShApING capabilities. 6 3- 1. Arc Starting Methods . 6 3-2. Balance Control . 6 3-3. AC Frequency Adjustment Control . 7 3-4. Amperage Adjust Control . 7 3-5. Frequency Adjustment Control - 60 Hz . 8 3-6. Frequency Adjustment Control - 200 Hz . 8 3-7. Suggested Inverter Power Source Starting Parameters For Various . . . Aluminum Joints. 9 3- 8. Suggested Inverter Power Source Starting Parameters For Various . . . Aluminum Joints Continued . 10 SECTION 4 - TUNGSTEN SELECTION AND PREPARATION . 11 4- 1. Safety Information And Selecting Tungsten Electrodes . 11 4-2. Selecting A Tungsten Electrode . 11 4-3. Proper Tungsten Preparation . 11 4-4. More About Tungsten Preparation . 12 4-5. Tungsten Shape For AC Sine Wave Conventional Squarewave .