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Author Topic: Brass D section  (Read 2614 times)

ukmike

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Brass D section
« on: February 10, 2012, 04:59:08 pm »
Hi.

I have some 3mm ( 1/8th ) D section in a coil that I want to use to make the rubbing strip for my Riva.

The brass is very springy almost like spring steel. I need to straighten it out into 2 x 1 metre lengths so that it can be drilled for fixing and then chrome plated.

My question is this, what is the correct way to anneal this brass so that I can easily bend it to shape, ( a very slow curve ) and drilled  without affecting to chroming process ?

Thanks.

Mike.
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boatmadman

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Re: Brass D section
« Reply #1 on: February 10, 2012, 05:13:52 pm »
Mike,

I anneal brass by heating to a cherry red colour (no more or it might melt), then dropping straight into cold water. This will soften the brass ok.

 I cant be sure, but I cant think of any reason why this should create a problem for subsequent chrome plating.

Ian
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irishcarguy

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Re: Brass D section
« Reply #2 on: February 11, 2012, 06:19:14 am »
Hi Mike, Ian is correct, that is how I do it too. However be very careful as it turns to liquid in the blink of an eye if over heated. You should have no problems chroming it later as far as I know. Mick B.
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Mick B.

ukmike

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Re: Brass D section
« Reply #3 on: February 11, 2012, 02:04:17 pm »
Many thanks to you both.

Once it's been straightened and drilled, is it possible to re harden it a little prior to chroming ?

Mike.
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boatmadman

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Re: Brass D section
« Reply #4 on: February 11, 2012, 02:12:57 pm »
As far as I know, brass will re harden only by mechanical working (machining, deforming, hammering etc) which clearly is no use to you.

If you google 'hardening brass' you will find a number of sites with comments about this.

Ian
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ukmike

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Re: Brass D section
« Reply #5 on: February 11, 2012, 02:33:14 pm »
Quote from: boatmadman on February 11, 2012, 02:12:57 pm
As far as I know, brass will re harden only by mechanical working (machining, deforming, hammering etc) which clearly is no use to you.

If you google 'hardening brass' you will find a number of sites with comments about this.

Ian

Thanks Ian.

Why didn't I think of that.

Mike.
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