Metal
6061 aluminium
Billet, machined to size. Swarf is not counted as scrap because it is priced into the billet; the scrap here is the first article and the part that moves in the fixture.
Typical scrap rate
1%
Yield multiplier
1.0101x
Effect at 1,000 units
At 1,000 units it adds $0.04 to a $13.99 landed unit. A subtractive process pays for its waste up front, in the stock.
Notes
Machining pays for its waste in the stock, not in the scrap rate: a part that finishes at 200g may start as a 900g billet, and all 900g is already inside the quoted rate. The 1% here is only the parts that fail, not the metal that becomes swarf.
A near-net blank, a casting or an extrusion changes that arithmetic more than any scrap improvement can, because it changes what you are buying rather than how much of it survives.