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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.
Objectives After studying this section, you should be capable to understand: Cell aspects of scheduling, Conventional priority rules, Newer approaches to on line
Tempering and Stabilization: Tempering of tool steel in heat treatment is again a significant step. The quenching of such steels reasons the existence of untempered martensit
Determine the relative error in the function y = ax 1 m1 x 2 m2 ........x n mn If u = 4x 2 y 3 / Z 4 and error in x, y, z be 0.a, compute the relative maximum error in u ta
Determine the maximum stress intensities: A rolled steel I-section, flanges 150 mm wide & 25 mm thick, web 200 mm long & 10 mm thick is utilized to carry & axial load of 800
Transformation Hardening The main features of the laser as a heat source for transformation hardening are: (A) Clean energy source. (B) Energy is localised: no heat spillage.
Q. What is Squeeze time? It is the time between the initial application of the electrode pressure on the work and the initial application of current to make the weld. During th
Occupational Safety Acts The occupational safety Acts are intended to cover every employees (even if single) and all kinds of employers from manufacturing and construction to
The following data was obtained from an orthogonal cutting test : Rake angle = 20o, Depth of cut = 6 mm Feed rate = 025 mm/rev Chip length before cutting = 29.4 mm Chip
Linear velocity of links using Instantaneous center method
Safety Functions - Industrial Safety In the statement about safety organization various functions have been mentioned. Yet, a clear description is lacking. Without much elabor
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