Crimp Confusion

[krus1972]

I have bee asked to duplicate the two crimps shown is this image:

http://www.product.info/images/crimppicture.jpg

The material is aluminum. The O.D. of the non-crimp portion is 0.224in. The I.D. of the non-crimped portion is 0.200 in.

The width of each of the crimps is about 0.25 in (1/4") and the spacing in between both crimps is about 0.250 in (1/4")

The black on the right is simply a hose placed over the un- crimped portion.

I can custom make tooling.

I could really ANY ideas on how I would do such a crimp and/or make a tool to do this. Regular crimping tools can't do this.

Any idea would be well appreciated.

 

[ABritTurner]

You have to make a crimping tool in two halves as with a scissors. You will need to design the tool carefully and experiment a little to get it right making allowances for how much give is in the material. It's not my field but I have see toolmakers do it and that is something they specialise in.

 

[Compositepro]

It appears to be a rolled crimp using something like a knurling tool. The rubber is already cracked so you really do not want to use such a crimp, where the sharp edge of the ferrule cuts into the rubber.

 

[hydtools]

The hose cover may have been removed, skived, before the fitting was crimped.

http://www.hydraulicseaton.com.cn/gb/product/pdfs/W-HYOV-MC002-E_AD07_Skiving_Proc.pdf

Ted

 

[Compositepro]

Hydtools, I think you are correct. It still seems a good idea to move the crimp in a little from the end of the ferrule to reduce the sharp edge causing a stress riser in the hose wires.

 

[krus1972]

I just need some ideas on how to put the crimps in the Aluminum. I don't care about the hose at all.

Any good suggestions would be well appreciated.

 

[hydtools]

Use a hose crimping tool.
For example:

http://www.discounthydraulichose.com/product_p/855.htm

or

http://www.waresdirect.com/products...rises/Heavyduty-Ferrule214916?trackURL=nextag

Ted

 

[krus1972]

hydtools or anyone,

Here is a picture of a tool that does this type of crimping:

http://www.product.info/images/crimptool.jpg

Can anyone tell me what it is and where I can get one of these?