Wonkee Donkee’s Top Tips for Deburring
Wonkee Donkee’s top tips for deburring |
||||
|
|
||||
| When deburring, here are a few things to bear in mind: | ||||
Use the correct cutting speed |
||||
 |
When selecting the cutting speed, slower is better. This prevents chattering of the tool which can result in chatter marks being left on the cut surface. | |||
 |
Using a slower speed will also reduce the height of the burrs produced in the machining (e.g. drilling, turning, cutting) process. | |||
Use the correct feed rate |
||||
 |
When selecting the feed rate, choose a slower one as the quicker the feed rate, the faster the tool will wear out.
Even though deburring cutters are made from HSS, they can’t be used at record breaking speed! |
|||
Apply a lubricant |
||||
 |
When deburring, use a cutting fluid or lubricant. This will help to reduce heat and resistance between the cutter and the material, which can cause chattering of the tool. | |||
Use a hardened tip for hardened metals |
||||
 |
Avoid using HSS deburring tools on hardened metals (stainless steel and tool steel), as the cutting edge will wear away quickly, and a high quality finish will not be achieved.
If you need to deburr a hardened metal, look for tools with cobalt or tungsten hardened tips. Cobalt is more heat-resistant and is good for machining stainless steel and cast iron, whereas tungsten can be used with any material. The disadvantage of both of these hardened tips is they can become much more brittle and are more expensive. |
|||
 |
||||
Choose a pilot guide for highly accurate applications |
||||
 |
If the chamfer on the machined hole needs to be highly accurate, consider using a piloted deburrer. This deburrer has an extra piece on the tip, which guides the tool bit into place, centring it in the machined hole. | |||
