Workholding & Workpiece
Fixtures, clamping, datums, and workpiece setup.
Blank
Raw material form before machining.
Center
Center device used to support the end of a workpiece.
Chuck
Rotating clamping device for holding workpieces.
Clamp Plate
Fixture element that fixes a workpiece by pressing.
Clamping
Action of fixing a workpiece on the machine.
Clamping Force
Force required to hold the workpiece.
Clamping Mechanism
Mechanism assembly that performs clamping action.
Dowel Pin
Pin used for precise positioning.
Fixture
Device used to locate and clamp workpieces.
Fixture Body
Main structural component of a fixture.
Four-Jaw Chuck
Chuck with independent four-jaw clamping.
Hard Jaw
Hardened standard chuck jaw; wear-resistant but less adaptable.
Jaw
Clamping jaw used by a chuck or fixture.
Magnetic Fixture
Fixture that holds workpieces by magnetic force.
Pallet
Exchangeable platform that carries the workpiece.
Pallet Change
Operation of exchanging pallets on the machine.
Positioning
Determining the workpiece position on the machine.
Quick-Change Fixture
Fixture system designed for fast replacement.
Soft Jaw
Jaw that can be machined to fit the workpiece.
Tailstock
Component on a lathe used to support the workpiece.
Three-Jaw Chuck
Chuck with synchronized three-jaw clamping.
Tooling Plate
Base plate for mounting fixtures and workpieces.
Tooling Positioning
Positioning scheme implemented by tooling.
V-Block
Fixture block used to locate cylindrical parts.
Vacuum Fixture
Fixture that holds workpieces by vacuum suction.
Vise
Common device for clamping workpieces.
Workholding Datum
Datum plane or point used for positioning during setup.
Workpiece
Part or material being machined.
Workpiece Holding
Method for securely holding a workpiece.
Workpiece Setup
Process of mounting and fixing a workpiece.