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Forum: HOW TO JOIN ALLMETALSHAPING AND WHY YOU MAY NOT BE ABLE TO SEE EVERYTHING 08-14-2018, 12:53 PM
Replies: 2
Views: 142
Posted By crystallographic
Yo Xeno, Welcome. Auto metal stuff is here in...

Yo Xeno,
Welcome.
Auto metal stuff is here in abundance.
Forum: Introductions 08-14-2018, 12:51 PM
Replies: 3
Views: 58
Posted By crystallographic
Hi Adorian, Welcome. SCA is pretty serious...

Hi Adorian,
Welcome.
SCA is pretty serious these days - safety stds for helmets and etc. Some fine metalwork in that group. Used to know the gal who initially got it going in her back yard, decades...
Forum: Welding Sheet Metal 08-13-2018, 02:54 PM
Replies: 7
Views: 557
Posted By crystallographic
99% Isopropyl is cheaper and just as good for the...

99% Isopropyl is cheaper and just as good for the purpose - and it does not go into your liver within 20 seconds after skin contact. (So I have been told by two separate PhD research chemists, while...
Forum: Welding Sheet Metal 08-10-2018, 11:41 AM
Replies: 7
Views: 557
Posted By crystallographic
TIG-tacking aluminum - no peek and no filler

This is for those situations where because you are holding one large panel up against another you have only one hand to tack with.


For instance, when adding a formed dash panel onto a cowl...
Forum: Welding Sheet Metal 08-10-2018, 11:01 AM
Replies: 4
Views: 320
Posted By crystallographic
I think you mean "TIG-tacking, no peek, no...

I think you mean "TIG-tacking, no peek, no filler, on aluminum" ??
If so, I showed this on a video / dvd back in 1995 -



I'll post this process in a new thread ...
Forum: Basic questions and answers 08-09-2018, 04:41 PM
Replies: 16
Views: 987
Posted By crystallographic
I wonder how many millions of soldered radiators...

I wonder how many millions of soldered radiators have been put in cars over the past 120 years....
Or soldered gas tanks....


Rapid cooling of hot steel makes hard steel. Like gravity, it works...
Forum: Basic questions and answers 08-08-2018, 10:51 AM
Replies: 16
Views: 987
Posted By crystallographic
TIG can make distortion on this part, and since...

TIG can make distortion on this part, and since it is enclosed ... how do you get inside to iron that out?
Soldering makes a strong part for this application, but unless you do a fair amount of this...
Forum: Welding Sheet Metal 08-07-2018, 11:02 AM
Replies: 11
Views: 662
Posted By crystallographic
Kyle, This is a stunner! Excellent job - Gold...

Kyle,
This is a stunner!
Excellent job - Gold Star.
Forum: Welding Sheet Metal 08-03-2018, 02:44 PM
Replies: 11
Views: 662
Posted By crystallographic
Soldering steel tanks

I've made overflow tanks from steel, copper, brass, stlss and aluminum.
And soldered, brazed, or welded.
I've overbuilt a lot of unnecessary stuff, thinking that the orig only lasted 70 years .......
Forum: Introductions 08-03-2018, 01:33 PM
Replies: 3
Views: 111
Posted By crystallographic
Welcome to the metal gang, Mike. Make that...

Welcome to the metal gang, Mike.
Make that metal flow!
Forum: Introductions 08-01-2018, 12:51 PM
Replies: 3
Views: 132
Posted By crystallographic
Hi Tiff, Welcome to the metal gang. 48236 ...

Hi Tiff,
Welcome to the metal gang.
48236
48234
48235
Thousands of women welded aircraft in WW2 - and many stayed on for decades after.
Marietta Corp had crews of 35 women welding aviation...
Forum: Introductions 07-31-2018, 04:23 PM
Replies: 6
Views: 186
Posted By crystallographic
Welcome to the metal gang, Mike. Good to see...

Welcome to the metal gang, Mike.
Good to see you are branching out a bit from structures.
Forum: Basic questions and answers 07-30-2018, 04:34 PM
Replies: 16
Views: 987
Posted By crystallographic
... And you can make design adjustments in your...

... And you can make design adjustments in your pieces as you go by using the base piece in place and mocking up variations as you go.


Sometimes you cannot see a shape clearly until it is mocked...
Forum: Basic questions and answers 07-30-2018, 04:14 PM
Replies: 16
Views: 987
Posted By crystallographic
Looks to me like a piece that is applied to the...

Looks to me like a piece that is applied to the car by threaded fasteners.


I'd make the bottom (base) piece fit the lid, with 1/2" flanges fore and aft and add the threaded inserts to it and the...
Forum: Introductions 07-30-2018, 10:53 AM
Replies: 5
Views: 809
Posted By crystallographic
Welcome to the metal gang - Are you the Squeak...

Welcome to the metal gang -
Are you the Squeak who worked for MacPherson?
Forum: Automotive Projects 07-27-2018, 06:30 PM
Replies: 12
Views: 1,104
Posted By crystallographic
Was going to ask if you were using tooling...

Was going to ask if you were using tooling f'glas.
Lessee how this goes ...:)
Forum: General Discussion 07-27-2018, 02:30 PM
Replies: 35
Views: 2,308
Posted By crystallographic
True, MIG does one thing pretty well at the low...

True, MIG does one thing pretty well at the low end: stick steel parts together.
But doing auto repairs, I think, requires a good variable-range heat source.
At least for making espresso, cooking...
Forum: General Discussion 07-26-2018, 06:04 PM
Replies: 35
Views: 2,308
Posted By crystallographic
Pinpoint shrinks are done with a sharp, hot...

Pinpoint shrinks are done with a sharp, hot (oxidizing) flame.
Point the torch flame straight down (90deg to panel) and with the inner cone a nickel's thickness away. Count one-two, and pull flame...
Forum: General Discussion 07-26-2018, 02:09 PM
Replies: 35
Views: 2,308
Posted By crystallographic
Keep asking those questions, James. Sometimes we...

Keep asking those questions, James. Sometimes we can get the question just perfectly - and other times we have to just peck away at asking ....
Keep practicing ... and try new stuff.
Forum: General Discussion 07-26-2018, 12:30 PM
Replies: 35
Views: 2,308
Posted By crystallographic
Some of us obsessive and stubborn guys learn that...

Some of us obsessive and stubborn guys learn that panel metal is non-trivial, in thickness, hardness .... and alloy.
On one level, grab a chunk of whatever and glom it in and whack it around and go...
Forum: General Discussion 07-20-2018, 03:51 PM
Replies: 10
Views: 533
Posted By crystallographic
Rim steel begat Draw Quality, begat Draw Steel. ...

Rim steel begat Draw Quality, begat Draw Steel.
PDM carried rim steel in the early 1970's.
Forum: General Discussion 07-19-2018, 11:52 AM
Replies: 10
Views: 533
Posted By crystallographic
AK, DQ, DDQ, EDQ steel sheet

AK, DQ, DDQ, EDQ used to be available from PDM, then Ryerson. Now, maybe Arcelor Mittal ??
or Thomas Register...
Forum: Shop Safety 07-17-2018, 06:29 PM
Replies: 18
Views: 1,485
Posted By crystallographic
For those needing more lumens than the 8000K...

For those needing more lumens than the 8000K deliver, there are 11000K temperature LED light tubes - mfgd by Lithonia. Not cheap.

The Platinum Electric Co. plant uses them in its gen-room up on...
Forum: Shop Safety 07-17-2018, 11:26 AM
Replies: 18
Views: 1,485
Posted By crystallographic
Opthalmic facts: At the age of 40 your eyes'...

Opthalmic facts:
At the age of 40 your eyes' need for light doubles.
At the age of 50, doubles again.
60? - doubles again.

The craftsman NEEDS good light - so I have 300W X 2 ea. over each...
Forum: Shop Safety 07-16-2018, 08:45 PM
Replies: 18
Views: 1,485
Posted By crystallographic
Yep, My math shows another 19.35 years ahead,...

Yep,
My math shows another 19.35 years ahead, and an average ballast time of 23.5yrs.
Failure rate is 13%, with a $12.86 replacement cost and an 11 minute ET to change out.
Works for me.
29 tubes...
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