Machining & Finishing

A die casting leaves the die with the runner, overflows and, on cold chamber parts, the biscuit still attached, plus a thin line of flash at the parting line. A trim press removes them, then edges are deburred or shot blasted. CNC machining adds the sealing faces, bores and threads that casting alone cannot hold, and a surface finish protects the part.

When the same supplier casts and machines, machining datums, stock allowances and masking for finishing are planned with the die instead of after the first parts arrive.