For diecasting, the options for rapid manufacturing are machined tooling, laser-based die insert
fabrication and plaster molding.
Ausen, Seth, and Venne have developed a method for coextruding an initial melt stream through a profile die with a die insert
. The die insert
induces melt redistribution, resulting in layered extruded films by altering the discrete thermoplastic resin streams in a film extrudate at the die lip, in the die, or before the die.
Real model of movable die insert
and real view of fixed die insert
after machining is shown in Fig.
2a shows the composite ceramic mould produced for die insert
casting and comprised of the facing layer and the chamotte-basis backing layer.
The use of HEAT can also enhance small-volume-parts production of stamping die insert
blocks, variable thickness punches, mold cores, inserts, and slide blocks.
As a die insert
moves from the back to the front of the die case, it doesn't have to be pressed the full length of the bore in the case, like a straight die does.
DMLS machines create a die insert
by sintering thin layers of powdered metal.
Once a die insert
is treated, the tool often lasts 10 times longer.