Yg. Dorofeev et al., Production of parts with lengthwise grooves by pressing the working elements of a tool into the body of a compact, POWD MET ME, 37(7-8), 1998, pp. 443-447
The technology of heat forming of powder products with lengthwise grooves h
as been developed, which consists of pressing the working elements of a too
l in the body of a preheated porous blank. The influence of porosity, shape
, the degree of preliminary plastic deformation, and the geometric paramete
rs of the porous blank on the area of the textured zone of product lugs has
also been examined. The maximum values ave attained when blanks with a por
osity of 15% (without preliminary compression) and 20-25% (with compression
) are used.