Paper and cloth backing material
Paper and cloth backing material serve as the backing for abrasive grain and bonding. The backing material determines the flexibility, tear strength and area of application of the abrasive. It also transfers the stock removal forces to the relevant workpiece
Paper backing properties:
- Stretch-resistant
- Smooth surface ensures smooth running
- Lower weight compared to cloth
- The lighter the paper, the more flexible the backing becomes
- Cost-effective
- Requires careful handling, especially at high grinding pressures
Properties of cloth backing:
- High tear strength
- Depending on the application, various cloth backings are available – from extremely flexible to extremely sturdy
- It can also be used in wet grinding
Typical problems with paper and cloth backing material
Too stiff or too soft for the application at hand
What is there to keep in mind about paper and cloth backing material?
- Choose a backing material suitable for the machine
- Assess the load realistically
- Factor in material and grinding pressure
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