A unit composed of an assemblage of pieces welded together.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "weldment" in a sentence
"I have done only a few of these in the past and none using a weldment."
"One of the currently favored methods is to make a weldment whereby machined channels part way through two halves of the disk are joined at the face through furnace welding the two mirror images together."
"You should always hook your ground clamp on weldment, then stinger as positive polarity, this offers optimal self cleaning action of electron flow from metal to electrode stinger."