Mig spot welding, although sometimes considered a tacking tool, has gained wide acceptance as a methodof joining which is competitive with riveting and resistance spot welding. In some applications, it hasreplaced continuous welding methods as it provides reduced welding costs, reproducibility, and adequatestrength for the service requirements and requires minimum operator skill. Mild steel, stainless steel andaluminum are very commonly welded with this method
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.
The Industrial Hydraulics Manual is a color-illustrated hardbound textbook with more than 600 pages of information. It covers a range of topics related to hydraulics and electrohydraulics, including basic hydraulics principles, electricity and electronics, amplifiers, cartridge valves and circuits. The appendices of the manual feature commonly used formulae, conversion charts and on-the-job reference tools, such as tables and illustrations. The Industrial Hydraulics Manual also includes a chapter focused on the operation of industrial hydraulic circuits and injection molding systems.
Giáo trình cung cấp cơ sở cho người đọc các thao tác hàn điểm, hàn 3G, 6G, và để an toàn lao động khi hàn. Giáo trình được viết bằng tiếng Anh trình độ đại học và sau đại học. Giáo trình chỉ mang tính chất tham khảo.
The complete bodyshell of most cars is built up from a variety of sections which are resistance welded together.
This type of weld is more commonly known as a “spot weld” due to its’ appearance – a circular weld about 1/4”
wide. Each section of a modern car contributes to the strength of the whole shell, so it becomes vital that if any
of those sections are removed, a replacement must be welded securely back into position, using a similar
number of welds in the same places as the originals, to restore rigidity.
One noticeable trend of the last...