Be Cu

[SBerg]

Anyone familiar with Beryllium Copper? Drilling deep water lines to be specific.... .4375" dia.

I am thinking I will need to use gun drills instead of the long coolant through solid carbide drills.

[workmantm]

We machine a couple glands from it. Nothing like what you are talking about though.

 

I treat it like Copper. It tends to like a chip load and makes nice small chips that break cleanly.

Very similar to Al-Ni-Br Alloy C63000. We run lots of that stuff as well.

[htm01]

keep it cool, if it heats up will grab the drill, we do lots of becu but no more than 2 1/2" deep, cobalt drills usually no problems

[Redfire427]

Putting a small offset on your drill will go a long ways to prevent seizing. We cut tons of BeCu. Coolant thru drill work very good, but must be sharp.

 

Carmen

[htm01]

we used to cut ampcoloy 940 and you had to grind drill point off to one side.

[mkd]

As beryllium compounds are toxic and cumulative poisons, there are some safety concerns with handling its alloys. In solid form and as finished parts, beryllium copper presents no known health hazard. However, breathing its dust or vapors, as formed when machining or welding, will eventually cause serious lung damage.^[2] Beryllium compounds are known human carcinogens when inhaled.^[3] As a result, beryllium copper is sometimes replaced by safer copper alloys such as Cu-Ni-Sn bronze.^[4]

https://en.wikipedia.org/wiki/Beryllium_copper

just sayin

[SBerg]

thanks for the advice, will do some test drilling to see if we can get the results we are looking for.

[FROZEN]

read the MSDS sheets, keep it wet and don't breath the smoke.

[htm01]

a big factor is being allergic to it. we had a guy that had to quit, couldn't even take his tools.

[SBerg]

yikes.... We are taking the necessary precautions. Machine wet and ventilate vapors.

[htm01]

yikes.... We are taking the necessary precautions. Machine wet and ventilate vapors.

yeah the guy got real sick, berylliosis, broke out in rashes all over his body and even had scaring on his lungs.

[within a thou]

Use to cut a lot of it for mould inserts. Whenever a mistake was made and we had to weld it up we had to send it to the states because it is illegal to weld in ontario canada

[Redfire427]

Use to cut a lot of it for mould inserts. Whenever a mistake was made and we had to weld it up we had to send it to the states because it is illegal to weld in ontario canada

 

Yeah right. We get it welded all the time, except, you lose the hardness in the process. If you ever need to get some welded, just shoot me a PM and I'll send you in the right direction.

 

Carmen

[within a thou]

Yeah right. We get it welded all the time, except, you lose the hardness in the process. If you ever need to get some welded, just shoot me a PM and I'll send you in the right direction.

 

Carmen

I was always told by the boss we couldn't (this was also in Ontario about 15 years ago. We always sent it to Detroit.