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单词 projection welding
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projection welding
projection welding n. a method of welding in which projecting points in the components are used as welding sites.
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society > occupation and work > industry > working with specific materials > working with metal > [noun] > welding > types of
butt welding1878
lead burning1886
arc welding1890
thermite process1905
thermite welding1906
resistance welding1908
spot welding1908
seam welding1917
fusion welding1918
projection welding1918
stud welding1918
metal arc welding1926
pressure welding1926
metallic arc welding1927
flash-butt welding1933
flash welding1933
stitch welding1934
rightward welding1936
block welding1943
submerged-arc welding1945
friction welding1946
T.I.G.1960
microwelding1962
1918 D. T. Hamilton & E. V. Oberg Electric Welding iii. 119 The welding of sheet metal is not restricted to one spot at a time, as any reasonable number of welds can be made at one operation by the method known as ‘point-’ or ‘projection-welding’.
1975 G. Bram & C. Downs Manuf. Technol. ii. 63 In projection welding the component is shaped to provide localised current flow, concentrating the welding heat at the areas of projection.
1994 Appliance (Nexis) Apr. 6 In projection welding, the procedure is designed to concentrate the thermal energy of the welding process locally and to complete the operation before the welding heat can spread to surrounding areas.
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