Mistake #3: Reducing quality by using the wrong cut-off machine
When sectioning large workpieces, the large contact surface between the material and the cut-off wheel means there is a bigger risk heat being generated. As a result, thermal damage can be a problem. Thermal damage is a burning in the material’s surface, which changes the micro-structure of the material. This damage has to be removed through plane grinding – and so adds more time to your overall process.
The solution: Combine the correct cut-off machine, accessories and consumables
Optimize your sectioning of large workpieces by choosing a cut-off machine, cooling unit, clamping tools and cut-off wheels to best suit your tasks.
Many cut-off machines include special automatic cutting modes, which ensure optimal feed speed, constant results and less wheel wear. With Struers’ machines, you choose between three different automatic cutting modes:
- AxioCut Sweep for fast sectioning and optimum wheel economy
The cut-off wheel moves back and forth, swiping across the specimen to avoid overheating. This makes it possible to cut large workpieces quickly, without thermal damage, while minimizing wear on the cutting wheel.
- AxioCut Step for even faster sectioning
The cut-off wheel moves up and down the sample, minimizing the contact area and avoiding overheating and thermal damage. Cutting is faster than with the AxioCut mode, but cut-off wheel wear is greater.
- ExciCut for cutting hard materials without thermal damage
ExciCut uses an oscillating movement of the cut-off wheel to reduce the contact area between the cut-off wheel and the workpiece. This enables you to cut very hard materials in large sizes without thermal damage. At the same time, it makes it possible to use harder cut-off wheels, which have a longer lifetime and reduce your costs.
Need help finding the right cut-off machine? Check out our cut-off machine selection guide or contact us
Our cooling systems to ensure you get high quality cuts without thermal damage. See our cooling units
Check out our range of clamping tools and cut-off wheels