Welding and Allied Processes

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For a good joint strength the liquid filler metal; must flow into the gap between the metal pieces to be joined and cover the entire surface area, without gaps or blow holes. The following usually insures good bonding: – Clean base metal surfaces – Maintain optimum gap – Heat the joining area above melting temperature of the filler material – Use fluxes for welding of base metal surfaces. Joint strength is sensitive to the gap and there exists an optimum gap for a filler material.
Brazing Brazing methods (a) Torch and filler rods (b) Ring of filler metal at entrance of gap (c) Foil of filler metal between flat part surfaces
Page 1 and 2: Welding and Allied Processes Manual
Page 3 and 4: Types of welding processes Solid s
Page 5 and 6: Forge welding Forge welding is the
Page 7 and 8: Explosion Welding Welding is achiev
Page 9 and 10: Arc Welding In Electric Arc Weldin
Page 11 and 12: The used can be either non-consumab
Page 13 and 14: Arc Welding Back
Page 15 and 16: Arc and Power Source Characteristic
Page 17 and 18: Gas Metal Arc Welding Back
Page 19 and 20: Resistance Spot Welding
Page 21 and 22: Seam Welding
Page 23: Oxyfuel Welding OFW is the term to
Page 27 and 28: Temperature distribution along the
Page 29 and 30: Flame Cutting Metal is merely melt
Page 31 and 32: Cracks (figure ( figure) Welding De
Page 34 and 35: Solid / Liquid State Bonding Low t
Page 38 and 39: In brazing the joint is made by hea
Page 40 and 41: Common braze metal families
Page 42 and 43: Joints in Soldering (a) Flat lock s
Page 44 and 45: Some common solder alloy compositio

Welding and Allied Processes

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