props before and after harding

**TheShaughnessy** · 09-23-2013, 09:19 AM

Those for boyd? Maybe its confidential. Nice work.

**dasboata** · 09-23-2013, 09:25 AM

Originally posted by TheShaughnessy

Those for boyd? Maybe its confidential. Nice work.

LOL I never kiss and tell LOL

**Cooper** · 09-23-2013, 10:00 AM

How long did you bake them?

**Mike Caruso** · 09-23-2013, 10:02 AM

Originally posted by dasboata

This is a nice order I did last week 6 sets of X470 cut down to different diameters thinned and hardened and a bunch of other props 28 in all B/S thinned these are on the way to a SAW event !

Pretty nice work.....my hands hurt just looking LOL

I have a few questions if you don't mind as I work (try) on my own props.
How do you cut the diameter down what do you use?
Do you anneal then rework and then harden?
Most people will never do all this work but I will.....maybe some day I own a boat that needs harden props. Ha I am sure it holds a sharp edge longer than normal.

Best,

Mike

**dasboata** · 09-23-2013, 10:57 AM

Originally posted by Cooper

How long did you bake them?

Octuras soak for 3 hours ABC is about 1 hour to cut them down I have a digital readout cutter I use for the most part annealing is not needed unless I am changing the pitch

**Cooper** · 09-23-2013, 11:34 AM

Thank you, as it seems you are doing it right. In the future would it be of interest to you if I were to ship some props for you to harden? As I do not have the right oven, bath for this heat range, time. And I very much agree with heat treating is not always needed. It would only be for those I have changed pitch/rake. I would assume to pay for your effort and time.

**dasboata** · 09-23-2013, 12:30 PM

Originally posted by Cooper

Thank you, as it seems you are doing it right. In the future would it be of interest to you if I were to ship some props for you to harden? As I do not have the right oven, bath for this heat range, time. And I very much agree with heat treating is not always needed. It would only be for those I have changed pitch/rake. I would assume to pay for your effort and time.

Sure can !!! e mail me when you are ready !

**dasboata** · 09-23-2013, 09:58 PM

Originally posted by Cooper

Thank you, as it seems you are doing it right. In the future would it be of interest to you if I were to ship some props for you to harden? As I do not have the right oven, bath for this heat range, time. And I very much agree with heat treating is not always needed. It would only be for those I have changed pitch/rake. I would assume to pay for your effort and time.

Rake ??

**Cooper** · 09-23-2013, 10:31 PM

Pitch is how much the prop will move forward, rake is the slant of the blades. A lot of people just say pitch. I more so twist the blade while bending so it's not technically changing the rake as I'm not removing the blade from hub. Sorry about that terminology, either way the blades are bent/moved from their original castings and I like to run high rpm so re-hardening is beneficial.

**Mike Caruso** · 09-23-2013, 11:18 PM

Originally posted by dasboata

Octuras soak for 3 hours ABC is about 1 hour to cut them down I have a digital readout cutter I use for the most part annealing is not needed unless I am changing the pitch

Thank you.

**Mike Caruso** · 10-20-2013, 10:24 PM

Originally posted by Mike Caruso

Thank you.

MORE GUYS!

I found this in papers I down loaded last year while I was cleaning up my basement work shop. If I could have figured out how to attach a word doc. I would have so everyone could read easy. Here are the address's

404

http://materion.com/...CFcZFMgodmVAAKQ

404

http://materion.com/...icalPapers.aspx

http://materion.com/...eryllium Parts

Bottom one is heat treating and I put it on IW's too.