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Welding Terms And Definitions Pdf

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BS 499-1:2009

Acceptable Weld A weld that meets all requirements and acceptance criteria of the design and welding specifications. Actual Throat The shortest distance between the weld root and face. Alloy Metal having different properties than the original base elements. Arc Blow The deflection or wandering of an electric welding arc from its normal path due to magnetism in the base metal. Arc Welding A group of welding processes wherein coalescence or complete fusion is produced by heating with an electric arc. As-Welded The condition of weld metal after welding but prior to any thermal, mechanical, or chemical treatment.

View evaclean. Quezon University. Process mode manual, semi-automatic, machine and auto One of the four process modes should be checked in this section based on the following definitions. Do not enter more than one process mode. CNC Machining: CNC is an acronym or a designation for a machine which uses a dedicated computer to control the actions of the machine and increase its evaclean.

Basic Welding Terms

Welding is a fabrication process that joins materials, usually metals or thermoplastics , by using high heat to melt the parts together and allowing them to cool, causing fusion. Welding is distinct from lower temperature metal-joining techniques such as brazing and soldering , which do not melt the base metal. In addition to melting the base metal, a filler material is typically added to the joint to form a pool of molten material the weld pool that cools to form a joint that, based on weld configuration butt, full penetration, fillet, etc. Pressure may also be used in conjunction with heat or by itself to produce a weld. Welding also requires a form of shield to protect the filler metals or melted metals from being contaminated or oxidized. Many different energy sources can be used for welding, including a gas flame chemical , an electric arc electrical , a laser , an electron beam , friction , and ultrasound.

Used as a fuel gas in the oxyacetylene welding process. ALLOY: A mixture with metallic properties composed of two or more elements, of which at least one is a metal. AMMETER: An instrument for measuring electrical current in amperes by an indicator activated by the movement of a coil in a magnetic field or by the longitudinal expansion of a wire carrying the current. The term annealing usually implies relatively slow cooling. In annealing, the temperature of the operation, the rate of heating and cooling, and the time the metal is held at heat depend upon the composition, shape, and size of the steel product being treated, and the purpose of the treatment. The more important purposes for which steel is annealed are as follows: to remove stresses; to induce softness; to alter ductility, toughness, electric, magnetic, or other physical and mechanical properties; to change the crystalline structure; to remove gases; and to prduce a definite microstructure.

Standard Welding Terms and Definitions

BS provides terms, symbols and definitions for welding, brazing and thermal cutting of metals. Some definitions might also apply to non-metals. This standard is intended for designers, those drafting welding specifications, welding production, manufacturers and inspection personnel. Where it was felt that an existing definition needed clarification, this has been done while striving to not contradict the existing definition. As far as practicable, the numbering system used in this standard follows that of BS EN , with new numbers allocated to terms that are not in the European standard.

Welding is a fabrication process whereby two or more parts are fused together by means of heat, pressure or both forming a join as the parts cool. Welding is usually used on metals and thermoplastics but can also be used on wood. Some materials require the use of specific processes and techniques. A number are considered ' unweldable ,' a term not usually found in dictionaries but useful and descriptive in engineering. The material added to help form the join is called filler or consumable.

Learn About Our Industrial Ovens. Become a Keen Distributor. The following are my non-technical definitions for some basic welding terms. These are good for the home hobbyist and those just coming into the welding field. Most people don't want to sit down and learn all the welding vocabulary and I don't blame 'em, I didn't either.

CTWEL - Welding Term and Definition

2 Comments

AurГ©lie D. 02.06.2021 at 12:31

WELDING TERMINOLOGY. • Ripple - Shape of the bead. • Pass – Each layer of the weld bead deposited. • Crater - Depression in the base metal. • Penetration.

Ferepreuawrit 02.06.2021 at 20:48

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