A technician needs to clamp a finished brass component securely into a standard mechanic bench vise to perform light maintenance. What is the proper procedure to prevent the vise from marring or indenting the soft surface of the workpiece?
- AApply heavy downward pressure during backward tool strokes to seat the workpiece firmly into the steel serrations.
- Install auxiliary soft jaw caps made of brass, copper, or polymer over the hardened jaws.Cevap
- CUse an extended cheater pipe on the vise handle to eliminate movement through maximum clamping torque.
- DIncrease the direct clamping pressure until the workpiece material conforms to the hardened serrations.
Cevap
Install auxiliary soft jaw caps made of brass, copper, or polymer over the hardened jaws.
Standard bench vises utilize hardened steel jaws featuring aggressive serrated cross-hatching to provide a firm grip on rough workpieces. When holding softer materials such as brass, aluminum, or finished machined surfaces, auxiliary soft jaw caps (made of copper, brass, aluminum, or polyurethane) must be installed over the steel jaws. These protective inserts conform slightly to the part, distributing clamping pressure evenly and preventing the steel serrations from indenting or scratching the finished surface.
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Workpiece Surface Protection with Bench Vise Soft Jaws
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