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Member postings for Howard Warehand

Here is a list of all the postings Howard Warehand has made in our forums. Click on a thread name to jump to the thread.

Thread: Tool Profile
05/09/2010 11:13:10
Good result when using the right tool steel!!!!!!. I guess the lesson is to make sure I buy from a reputable source and that bargains are not always bargains.
However I'm pleased that I posted the question on the forum because it brought up some useful ideas from you chaps.
Thanks again for your help,
Howard
31/08/2010 21:11:35
First, my grateful thanks to all who passed on such helpful information, it helps to lessen the learning curve!!. OK now its confession time!!!!. I collect HSS tool blanks whenever I get the chance (shows etc) and use them for odd jobs such as the one in question. On closer inspection it appears that the blank I picked from my stock isnt HSS   , in fact I can file it quite easily!!!!!!. This explains why after regrinding it would cut OK for a few revolutions then quickly stop cutting. A HSS replacement will be prepared at the weekend,and together with your ideas and suggestions, I should have a better result.
Thanks again to all,
 
Regards
Howard

Edited By Howard Warehand on 31/08/2010 21:13:48

30/08/2010 20:22:47
I have a Circular Ali Plate (Disc) 100 mm Diam by 10mm thick already mounted on a face plate. I want to machine a circular 2mm x 2mm groove into the face of the plate.
My problem is that I have ground up a tool for the job with a profile similar to a cut off tool (squared off beak type of thing) but with adequate clearances. The tool nibbles rather than cuts cleanly and tends to squeal rather than cut. Any ideas please on what the profile should be or any other suggestions.
Thank You
Howard
Thread: Graphite Bushes
18/07/2010 18:58:00
Thanks Lawrie. Your input is most appreciated. I only have a few components to make so I think that my Vac and air extractor will probably cope. Many thanks,
 
Howard
17/07/2010 20:00:01
I'm very grateful to you chaps for taking the time to help. The information was just what I was hoping for and has given me the confidence to have a crack at these bushes.
Just to help KWIL sleep at nights; the bushes are for a Low Temp Stirling Engine and the piston is also graphite which runs in a glass cylinder.
Thanks again for the information and advice,
 
Howard.
16/07/2010 20:17:12
Hi
I need to make some Graphite bushes but (a) can't find a supplier (min 15mm diam rod ) (b) I have'nt machined this material before, what are the does and donts and (c) I have been told that turning Graphite is a very messy affair and smothers the lathe with fine black dust, this I worry about!!!!. If anyone can give me assistance with any of the above, I would be most grateful.
 
Howard.
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