Workpiece Holding

For CNC teams, Workpiece Holding points to this concept: Method for securely holding a workpiece. Setup stability here limits both rework and hidden deformation errors. Stable execution here helps protect both quality and throughput. Datum transfer after reclamp is the most important consistency check in this area.

Practical Controls

• Define locating strategy that constrains required degrees of freedom.
• Set clamping force to prevent slip without deforming compliant areas.
• Verify tool and probe access before releasing fixture design.
• Standardize jaw and fixture changeover with controlled reference surfaces.

On-Machine Signals

• Feature spring-back after unclamping
• Setup repeatability difference by operator
• Local distortion near clamping points

Typical Pitfalls

Over-clamping introduces elastic error that appears after unclamp. Fixture wear and contamination are common but underestimated drift sources.

Stabilization Strategy

Teams usually stabilize this area by balancing location precision with clamping compliance.

• Keep setup records and inspection evidence linked to each process revision.
• Re-validate after tooling, fixture, or control-logic changes.
• Use first-article and restart checks as mandatory release gates.