The heat-affected zone is the region where the microstructure and mechanical properties of the material change due to the effects of heat (without melting) during the welding process. The microstructure and properties of the weld metal resulting from recrystallisation are related to the chemical composition of the weld, the cooling rate, and the post-weld heat treatment.

Rivet Welding Processing: high quality metal joining solutions for your projects In today's manufacturing industry, the choice of joining technology has a direct impact on the quality and performance of the product. Riveting and welding processing, as a key joining process, provides companies with an organic combination of riveting and welding technologies by...

The Critical Role of Dissolution Phenomena in Welding and Rivet Welding Processes and Control Strategies 1 Understanding Dissolution Phenomena and Their Importance in Material Joining Dissolution phenomenon is a fundamental and critical physicochemical process in welding and riveting processes. It refers to the fact that under the action of a heat source, the base metal, filler...

Innovation in Heavy Manufacturing: a Global Perspective (Heavy Equipment Manufacturing Industry as a Cornerstone of Global Infrastructure and Development) I. INTRODUCTION: FORCES SHAPING THE MODERN WORLD The heavy equipment manufacturing industry (HEMI) is a cornerstone of global infrastructure and development. From ...

Three years ago, I accompanied a coal mining procurement team on a tour of two excavator manufacturing plants. The first factory had a shiny floor, brand new equipment, and a red carpet on the tour path; the second factory had grease stains on the floor, the equipment looked used, and the workers were hammering on the jigs and fixtures. Coal mine...

In a variety of mechanical structures, bolted and welded connections are the two most common forms of connection. This paper mainly through the bolt and welding characteristics to the comparative analysis, summarise the advantages and disadvantages of the two main connection.

The Future of Rivet Welding Processing Plant: Automation and Intelligent Transformation 1 Industry Changes and Opportunities As a basic service of the manufacturing industry, riveting and welding processing is experiencing profound technological changes. The traditional welding and riveting process is gradually integrated with automation and digital technology, promoting the riveting and welding processing plant to a higher...

In the modern industrial system, precision welded delicate steel enterprises are the key link between material science and engineering practice. Through high-precision welding technology, they transform steel into structural parts with special properties, which are widely used in aerospace, medical equipment, precision instruments and other fields.

-75-Table 9: Pickling of stainless steel pipes; pickling and passivation of welded seams in Tongqiang and other stainless steel pipes. Table 3: Passivation of stainless steel: Alloy composition (volume fraction), treatment temperature (°C), duration (minutes). 00, 300 and 400 series; precipitation-hardening heat-treated alloys.

Applied Technology ahI Welding Process and Deformation Control of Large-Section, Thin-Walled, Single-Case, Double-Chamber Steel Box Beams Gu Biao Ma Li (Anshan Steel Construction Group Co., Ltd.)