- 1
A round object used as an aid for shaping a material, e.g. shaping or enlarging a ring, or bending or enlarging a pipe without creasing or kinking it.
- The coil springs were manufactured by winding the heated steel strip direct out of the furnace on to a mandrel of the requisite size.
- 2
A tool or component of a tool that guides, grips or clamps something, such as a workpiece to be machined, a machining tool or a part while it is moved.
- This socket forms the starting point of the piercing operation, enabling the mandrel to center itself on the work.
- When inserted into the staple, the outside of the mandrel should fit the inside of the staple exactly.
syn. spindle · arbor