Heat Treatment of welded joints: Reasons, Types of heat treatment in welded joints, bad or good ?

Heat Treatment of welded joints The intensity of the thermal cycles, which result in large residual stresses and/or weld metal and heat affected zone properties that differ radically from those of the parent material, determines the possibility of a weld defects. Failure might be sudden, occur over a short period of time, or present itself … Read more

Recent Advancements / Trends in Drawing Process Technology

Advances in Drawing Process Traditionally, wire drawing technology has been used to process simple axiasymmetrical goods. The process’s principal drawback is friction at the interface between the drawing tool and the deformed material, which results in variability of characteristics across the drawn wires’ cross-section. Increasing the product qualities during conventional wire drawing by modifying the … Read more

Recent Advancements / Trends in Forging Process Technology

Advancements in forging processes Computer Aided Engineering (CAE) in Cold Forging Process Competition around the globe requires the cold forging industry to utilize practical and proven computer aided design (CAD), computer aided manufacturing (CAM) and computer aided engineering (CAE) technologies for fast and cost effective process design and die manufacturing. That leads to higher accuracy, … Read more

Recent Advancements / Trends in Rolling Process Technology

Advances in rolling process for ferrous and non-ferrous metals The rolling process are the group of the most efficient production technologies and can be in general classified as rolling of long and flat products or forge rolling of shaped components. In the recent times, technological achievements in this field are related mostly to end product … Read more

Water Jet Cutting: Principle, Process, Applications, Recent Advancements Trends

Water Jet Cutting Water jet cutting/machining is a non-traditional machining process based on mechanical energy for cutting and processing metal and non-metal materials. Including the use of high-speed water jets to smoothly cut soft workpieces. Fine abrasive grains are used in combination with water to cut metal materials. In waterjet machining, a high-speed water jet … Read more

Stress Strain Curve: Different Zones, Factors affecting curve

Introduction to stress strain curve             Stress Strain diagram is an important graphical measure of material’s mechanical properties. It can be obtained from tensile testing of material in the Universal Testing Machine following standards below, e.g. ASTM E8 or IS 1608 for metals, ASTM D638 for plastics and ASTM D3039 for composites. Stress is internal … Read more

Friction Stir Welding : Principle, Working, Equipment, Advantages, Applications

Friction Stir Welding According to AWS, “Friction stir welding (FSW) is a ‘solid state forge welding process’, is a type of friction welding which makes a weld joint between two workpieces by the heating and plastic material displacement caused by a rapidly rotating tool that traverses the weld joint”. In Friction stir welding, no filler … Read more

Cold Spraying / Gas dynamic cold spray, process, equipment, variables, applications

History of Cold Spraying / gas dynamic cold spray The cold spray process or gas dynamic cold spray method was developed in 1980s by Russian scientists researching gas dynamics in Siberia. Although this process was not widely known outside Russia until the 1990s, cold spraying continues to be studied in research laboratories around the world … Read more

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