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Gas Lenses
Gas lenses are used to provide a laminar flow of shielding gas. All These attachments have a porous barrier diffuser and are fitted around the electrode or collet and remain inside the nozzles. By the gas lenses it is possible to keep longer gap between the nozzle and the work piece and to weld joints with limited accessibility providing adequate shielding.
Open coiled helical spring: In an open coiled helical spring along with α = 38 o , if the inclination of the coil is ignored, determine the percentage by which the axial exten
A light cantilever of rectangular section (5cm deep and 2.5 cm wide) has a mass fixed at its free end. Find the ratio of frequency of free lateral vibration in vertical plane to th
Q. Explain basic types of Sand testing? Moulding sands should be of proper quality to meet the required level of accuracy and surface finish of castings. Proper quality of the
WELDING ARC PHYSICS Electric arc as an intense source of heat is employed in welding of materials. In the field of welding techniques, arc welding processes constitute a major po
Alumina-Silica Composite This composite is an especially usual refractory material. Due to easy availability and low cost aluminia-silica composite is extensively utilized in
Physical significance of damping coefficient and it''s unit.
WIRE-FRAME MODELS The wire-frame model is perhaps the oldest way of representing solids. According to this model, any solid is represented by its edges and vertices. A wire-fr
Welding Process: There are many definition of a welding process. But the most comprehensive definition is below. Welding is defined as a "a localized coalescence of metals, wher
Shaft: What is shaft? What duty is performed by shaft? What is the usual cross section and of what material it is generally made? Sol.: The shafts are generally cylindr
Coplanar and Non-Coplanar Forces: In this unit, you have learnt to identify the different systems of forces. You have also learnt the many techniques of adding the forces to g
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