Search found 6847 matches

by GlennW
Sat Jan 16, 2021 5:30 pm
Forum: General Discussion
Topic: Boring Head Questions
Replies: 14
Views: 400

Re: Boring Head Questions

I'd sleeve it back to 1/2", and then make bushings with 1/2" O.D to accept 3/8", and 1/4" boring bars.

Example bushing types.
https://www.sommatool.com/catalog/acces ... shings.asp
by GlennW
Sat Jan 16, 2021 3:41 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 62
Views: 29553

Re: Amazing machine work

Assembled crankshaft.
DSC03060 Copy.jpg
Rotating assembly being lowered into the crankcase.
DSC03061 Copy.jpg
by GlennW
Sat Jan 16, 2021 7:27 am
Forum: General Discussion
Topic: Boring Head Questions
Replies: 14
Views: 400

Re: Boring Head Questions

The two holes are for extended range as well as internal and external cutting.

Seeing that the boring bars themselves are two different sizes, I would guess that the 9/16" hole was an error when sizing the holes originally!
by GlennW
Wed Jan 13, 2021 7:06 pm
Forum: General Discussion
Topic: 1 in 12 taper?
Replies: 11
Views: 367

Re: 1 in 12 taper?

1 in 12=4.7636 degrees.

5 degree tapered end mills

https://www.travers.com/3-flute-tapered ... tname=SITE
by GlennW
Wed Jan 13, 2021 6:37 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 62
Views: 29553

Re: Amazing machine work

Just do this five more times tomorrow and the crankshaft will be assembled.
DSC03049 - Copy.JPG
The crankshaft is brown due to the preservative I have on it. The journals get cleaned off as it gets assembled.
by GlennW
Wed Jan 13, 2021 4:15 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 62
Views: 29553

Re: Amazing machine work

Harold_V wrote:
Wed Jan 13, 2021 3:13 pm
Do you do the shot peening in your shop?
No, I send it out.

It is a CNC/Robotic process specific to these rods so the entire part has exact, perfect coverage.
by GlennW
Wed Jan 13, 2021 8:17 am
Forum: The Photo Album
Topic: Amazing machine work
Replies: 62
Views: 29553

Re: Amazing machine work

Connecting rod after mag inspection and shot peening.
DSC03048 - Copy.JPG
by GlennW
Wed Jan 13, 2021 6:27 am
Forum: General Discussion
Topic: 1 in 12 taper?
Replies: 11
Views: 367

Re: 1 in 12 taper?

In that application, It doesn't look like the angle itself is critical, just that the two parts mate up properly. If you tilt the head, and then machine both, they will match. If you tilt one part to mill it, and then tilt the head to mill the other part, they may not match properly. For that method...
by GlennW
Tue Jan 12, 2021 8:50 pm
Forum: General Discussion
Topic: Does 404 SS anneal and become malleable?
Replies: 12
Views: 442

Re: Does 404 SS anneal and become malleable?

As stainless alloys go, it's easy to weld via the tungsten-inert-gas (TIG) process, using tri-mix as the shielding gas and a compatible filler. Why not Argon? Argon is suitable but the weld quality may not be as cosmetically pleasing. In my experience, tri-mix seems to be more forgiving with stainl...
by GlennW
Tue Jan 12, 2021 9:39 am
Forum: General Discussion
Topic: Does 404 SS anneal and become malleable?
Replies: 12
Views: 442

Re: Does 404 SS anneal and become malleable?

BigDumbDinosaur wrote:
Tue Jan 12, 2021 1:46 am
As stainless alloys go, it's easy to weld via the tungsten-inert-gas (TIG) process, using tri-mix as the shielding gas and a compatible filler.
Why not Argon?
by GlennW
Sun Jan 10, 2021 5:14 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 62
Views: 29553

Re: Amazing machine work

I bought that gasket from someone else.
by GlennW
Sat Jan 09, 2021 8:33 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 62
Views: 29553

Re: Amazing machine work

More nice parts!

Assembling a Packard Merlin two stage Supercharger.

Second stage Impeller.
DSC03017.JPG
Second stage completed.
DSC03018.JPG
First stage diffuser
DSC03019.JPG
First stage Impeller.
DSC03020.JPG