At a glance
Several processes. One controlled component.
- one-off gauge manufactured to customer documentation
- CNC turning and complementary machining
- heat treatment to 58–60 HRC
- precision grinding, wire EDM and permanent marking
The challenge
Two inspection functions had to be combined in one gauge.
Silma was tasked with producing a single plug gauge for rapid verification of two dimensional ranges. The component required a consistent sequence of machining, heat treatment and precision finishing operations.
The manufacturing route was coordinated within one facility, from preparation of the workpiece to marking the completed inspection gauge.
Technical approach
A controlled sequence from machining to inspection surfaces.
CNC machining
Turning, knurling, grooves and the remaining features were produced in preparation for subsequent operations.
Heat treatment
The component was hardened to 58–60 HRC.
Precision finishing
The inspection surfaces were ground to the dimensions defined in the customer documentation.
Wire EDM and marking
Selected features were produced by wire EDM and the inspection functions were permanently marked.
Outcome
A finished gauge from one coordinated manufacturing route.
Combining CNC machining, heat treatment, grinding and wire EDM avoided splitting responsibility between unrelated suppliers.
The photograph shows the actual component manufactured by Silma Tools. Customer documentation has been removed for confidentiality. Inspection parameters and acceptance criteria are agreed individually for each order.