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Hot Topic (More than 10 Replies) CeroSafe aka Fixturing Alloy (Read 812 times)
n.r.davis
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CeroSafe aka Fixturing Alloy
May 17th, 2019 at 2:10pm
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This is my answer to "How am I going to do this" as I hate Filing.
I needed to cut the Leaves on a Rear Sight.  Took a bit of adjusting to get it set in the Mill, only took 14 minuets to do the actual cutting.  Maybe this idea will help someone along the way.  David
  
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JLouis
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Re: CeroSafe aka Fixturing Alloy
Reply #1 - May 17th, 2019 at 3:01pm
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Thank you I still learn something new everyday thanks to folks like yourself who take the time to share.
  
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Rebel
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Re: CeroSafe aka Fixturing Alloy
Reply #2 - May 17th, 2019 at 4:54pm
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Innovative and downright smart!

Aaron
  

WARNING: This post may contain material offensive to those who lack wit, humor, common sense and supporting factual or anecdotal evidence.
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uscra112
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Re: CeroSafe aka Fixturing Alloy
Reply #3 - May 19th, 2019 at 1:39am
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That method has been used for decades to hold jet engine turbine blades while the "christmas tree" root form is finish ground. 







  
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boats
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Re: CeroSafe aka Fixturing Alloy
Reply #4 - May 19th, 2019 at 3:16pm
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Nice trick, saving that one.

Boats
  
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colo native
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Re: CeroSafe aka Fixturing Alloy
Reply #5 - May 19th, 2019 at 9:36pm
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Common name is Woodsmetal mostly tin, lead and bismuth. I have used to cast chambers, but don't let it it stay in the chamber long after it turns solid, as it expands some...worked for a company that used it by
the ton-----
great for cking molds also
  
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n.r.davis
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Re: CeroSafe aka Fixturing Alloy
Reply #6 - May 24th, 2019 at 8:09am
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I was thinking about buying another pound or so but my Eyes Glaze over when I try to imagine getting it by the Ton.
$20 a pound X 2000 pounds = well the math just fails me!  David
  
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JLouis
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Re: CeroSafe aka Fixturing Alloy
Reply #7 - May 24th, 2019 at 11:00am
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$9.99 a pound at RotoMetals right now and free shipping for purchases over $99.00 and what I use. Second link will take you to the description and click view all to get to the shrinkage chart. It also shows the current sale price.

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« Last Edit: May 24th, 2019 at 11:21am by JLouis »  
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coljimmy
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Re: CeroSafe aka Fixturing Alloy
Reply #8 - May 28th, 2019 at 11:27am
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Now that you professionals have spoken, I went to see a friend who was doing a superficial cleaning on a historic Sharps.  Not knowing the caliber, he took a candle and crammed it into the chamber and declared it to be 50-70.  Not being entirely satisfied with his results, I borrowed some scrap lead from him and after plugging the bore ahead of the chamber, put 4 little dippers full of lead in and after 15 minutes, bonked out a wrinkled cast and the chamber was 50 by 2.5 inches.  I never did convince him that my method was more accurate.

James
  
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Remington40x
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Re: CeroSafe aka Fixturing Alloy
Reply #9 - May 28th, 2019 at 3:48pm
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How much does one need to do chamber castings?  I've recently acquired two small frame Martinis, neither of which seems to be chambered in the cartridge which was represented to me and I need to do castings to determine the correct cartridge.

Thanks.
  
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KFW
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Re: CeroSafe aka Fixturing Alloy
Reply #10 - May 28th, 2019 at 5:04pm
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you can buy small amounts of cerrosafe on ebay...$20 for a lb.
since it is reusable, that should last the average tinkerer for a good spell.
  
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oneatatime
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Re: CeroSafe aka Fixturing Alloy
Reply #11 - May 28th, 2019 at 6:32pm
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Or $10 from Rotometals . See John's post #7. Compare the shipping charges to see which works out best. Instructions are at: (You need to Login or Register to view media files and links)
  
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n.r.davis
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Re: CeroSafe aka Fixturing Alloy
Reply #12 - May 28th, 2019 at 7:40pm
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A pound does most of what I want.  I have been heating it in a Pyrex Measuring Cup with a Heat Gun.  I need to come up with a container with a built in spout like the old Mechanic's Oil Cans.  Does anyone have something like that?  David
  
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Dino in Reno 2
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Re: CeroSafe aka Fixturing Alloy
Reply #13 - May 29th, 2019 at 3:42am
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Hah! I like the idea there.

Dino in Reno
  
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marlinguy
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Ballards may be weaker,
but they sure are neater!

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Re: CeroSafe aka Fixturing Alloy
Reply #14 - May 29th, 2019 at 10:17am
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n.r.davis wrote on May 28th, 2019 at 7:40pm:
A pound does most of what I want.  I have been heating it in a Pyrex Measuring Cup with a Heat Gun.  I need to come up with a container with a built in spout like the old Mechanic's Oil Cans.  Does anyone have something like that?  David


I use one of those little stainless steel creamer cups that used to be at most cafes. I found a couple at the local Goodwill store and use one for Cerrosafe, and the other for my bullet lube.
But a lot of restaurant supply stores have them brand new and cheap. But usually have to buy 10 of them at around $.70 cents each.
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