2001- Frame thickness

Dr_C · Oct 16, 2018

Cheers guys!
I'm building a frame for a café racer project. As I would like to copy the rectangular central tube, I was curious about the sheet metal thickness in that box. Do any of you have the possibility to measure it for me?

Skickat från min SM-A520F via Tapatalk

GjimC · Oct 16, 2018

2006 HB04 frame Paint removed on the upper surface still paint on the inner surface;
2.1mm

bushmechanic · Oct 16, 2018

Hi Dr C yes I have one cut up into many pieces

It's at work somewhere I'll find it later today

From memory it is approximately 2mm plus ...

Dr_C · Oct 16, 2018

GjimC said:
2006 HB04 frame Paint removed on the upper surface still paint on the inner surface;
2.1mm

Thank you very much, GjimC!
Now I can go ahead and order some CrMo sheets!

Skickat från min SM-A520F via Tapatalk

GjimC · Oct 16, 2018

Hi Dr C

The spine of the frame actually looks like square tube the size however is unusual,
70mm x 70mm x 2.1mm this equates to 2-3/4" x 2-3/4" x 0.082" this however doesn't appear to be readily available in 4130N square tube sizes seem to jump from 2-1/2" to 3"

This is assuming that the spine is 4130N and not a high carbon steel.

jon andersson · Oct 17, 2018

Dr C lives where the international standard of units are used so 70x70 is not strange at all. But he will probably make the square tube himself as he mentioned sheet.

Dr_C · Oct 17, 2018

If my memory serves me right, the central tube was welded on the Husaberg frames, stress relieved through an annealing process. At least that was what my contacts at the factory said.

My tube will start at 100x60 at the steering head and end with 60x60, some 450-500mm further back. Just to keep up the sport!

Skickat från min SM-A520F via Tapatalk

GjimC · Oct 17, 2018

I have see the Husaberg frames being referred to as being "Normalized" this is common for 4130 to relieve internal stress post fabrication, I will be interested in what you do post fabrication of your frame.
Do you intend to normalize it (big oven 850-950 C followed by air cooling) and then hardened or just left in a normalized state ?

bushmechanic · Oct 17, 2018

Mine Varies 1.98 to 2.10mm no paint

Have you got a screenshot of the cad model of the frame ?

Dr_C · Oct 17, 2018

GjimC said:
I have see the Husaberg frames being referred to as being "Normalized" this is common for 4130 to relieve internal stress post fabrication, I will be interested in what you do post fabrication of your frame.
Do you intend to normalize it (big oven 850-950 C followed by air cooling) and then hardened or just left in a normalized state ?

I'm afraid normalizing the complete frame (see no point in normalizing parts) would distort the dimensions too much. I didn't do it with my Supermono frame, and it hasn't cracked anywhere so far...

Skickat från min SM-A520F via Tapatalk

Dr_C · Oct 17, 2018

bushmechanic said:
Mine Varies 1.98 to 2.10mm no paint

Have you got a screenshot of the cad model of the frame ?

Ok. 2,0mm it is! Thank you!
No complete model of the final (?) design yet. Basically: One tube downwards from the steering head, to keep clear of the exhaust. Split into two tubes for a cradle beneath the engine. The two tubes will also hold the swing arm and come up and join the rectangular central tube at its rear end. Then of course reinforcements and additional tubes here and there!

Skickat från min SM-A520F via Tapatalk

Search

Search

2001- Frame thickness

Dr_C

GjimC

Attachments

bushmechanic

Dr_C

GjimC

jon andersson

Dr_C

GjimC

bushmechanic

Dr_C

Dr_C

Similar threads

Register CTA

Recent Discussions

Recent Discussions