Principles of Thermal Deburring (TEM)

15.4.2008

There is this co called Weiler Corpn. Pl follow this lead on any decent search engine and you should hit pay dirt on deburring.

Methinks deburring definitely ranks among world's oldest professions. It is one of those things you cannot wish away. Cheers!

Thanks for that lead I'll follow it up.

See http://www.extrudehone.com/media/index.php?cat=tem apparently they are the inventors of the process.

Look for patents: http://www.google.com/patents

Thanks for that. We know Extrude Hone as we bought one machine off of them and they maintain it. However they have no documentation on the effects of the process or exactly how it works. We have their manual on how to use the machine but the rest seems down to trial and error.

The papers they have are schematic, but for a newbie like me it is enlightening: http://www.extrudehone.com/media/files/TEM_deburring.pdf

If you're a 'newbie' to thermal deburring have a look at our sites. There's far more info on TEM there than on the manufacturer's web site :)

http://www.deburr.co.uk & http://www.thermaldeburring.co.uk

My directors used TEM for 10 years before setting up this company. We've been offering a subcon service for the last 11 years using 3 machines so we have a huge wealth of experience based upon trial and error. A lot of it is on our websites

Over the last few years we are being asked more technical questions about thermal deburring and are struggling to find answers. Hence my original posting. We have established links with about 6 UK universities in the last year so far so can start to point people in the right direction.

I am sure you, Martin, are aware of the TEM process details but for others, these book sample pages describe the process.

Your trial and error experience would have to be a large advantage over competitors with less experience. One can imagine that it would be easy to damage a part with very fine detail and thin cross sections. Automating the machine setup would require a fairly sophisticated expert system, I'd think.

That's a great book - Deburring and Edge Finishing by LaRoux K Gillespie. I have one on my desk!!

Yes it is easy to damage thin parts and fine details. We can heat sink them to an extent. But if a burr is bigger than a thread then thermal deburring's non selectiveness goes for the smaller thread first!!

With thermal deburring I often start the discussion by defining what is a burr? Thermal focuses on removing the potential loose bits. (If it doesn't come off in the explosion it won't come off in service.) Sometimes a raised edge might be left depending on the material and shape of burr. Obviously if a blunt tool is pushed through it raises a very thick plastic burr. Thermal deburring will oxidise the bulk of it, melt back a certain amount but if the root of the burr is thick, the effect of the heat is safely dissipated into the bulk of the component.

Hi Martin,

Direct your deburring questions to sales@cyberprep.net

You will receive answers in a timely fashion.

Thanks...Steve

Thanks Steve I'll try that.

Martin,

If this is still of interest to you, give me a call or email jim.koroskenyi@kennametal.com

Tel 724-309-1660

I may be able to help you.

Jim

I would like to use thermal deburring service.

Are you providing the service.

We have some components which require thermal deburring.

Reply to: radhakrishnan.v@universalflexibles.com

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