Paddleducks

Paddler Modelling => Paddlewheels/Drive Systems => Topic started by: sinjon on April 21, 2012, 12:01:14 AM

Title: Annealing brass
Post by: sinjon on April 21, 2012, 12:01:14 AM

I have just started to make a pair of paddle wheels from brass. (my first paddle boat)
I am using 1/8'' square brass and I am 'trying' to form a circle of 110mm (4 3/8'') I can see that it is going to be exceedingly difficult unless I can anneal the brass.
Can anyone give me a clue as to how to do this.

Thanks
Colin

Title: Re: Annealing brass
Post by: derekwarner_decoy on April 21, 2012, 02:40:35 AM

Hi PD's...... :41 ....sorry sinjon

1. Don't believe Google

2. First method is to heat brass to cherry red then quench in cold water  :c002...this is incorrect

3. Correct method is to heat brass to cherry red then let cool at ambient temperature

4. I see your project as  :hammer difficult to achieve.......[been there done that type thing]

5. Talk to Kim @ ......???????? Clyde Model Boats.....he does brilliant scale feathering wheels.........

I will correct the name after I have a  :beer .....or two.......Derek.......no not needed.......

Title: Re: Annealing brass
Post by: steamboatmodel on April 21, 2012, 11:20:20 AM

My experience is that you can Quench in water, but you get more distortion that air cooling.
Regards,
Gerald.

Title: Re: Annealing brass
Post by: R.G.Y. on April 21, 2012, 05:33:50 PM

Quenching in will do nothing except save time.
To bend a perfect circle you will need a former slightly smaller than the finished item. A length of brass at least 6 inches longer than the circumference. as the ends will not bend as well as the middle.R.G.Y

Title: Re: Annealing brass
Post by: sinjon on April 21, 2012, 05:41:42 PM

Enough there to get me started - Thanks

Colin