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Technical => Electrical Tech => Topic started by: jcassity on August 21, 2012, 10:31:39 PM

Title: Crimper for our cars connectors
Post by: jcassity on August 21, 2012, 10:31:39 PM
what type of proper crimper is required to make the correct looking connections in a typical vehicle application.

will be reworking some hot spot connections in the near future, resource for pins also would be nice.
Title: Crimper for our cars connectors
Post by: mcb82gt on August 22, 2012, 08:34:45 AM
Not sure what type your looking for?  Here are some.

http://www.rjminjectiontech.com/collections/ford-terminals
Title: Crimper for our cars connectors
Post by: jcassity on August 22, 2012, 07:54:59 PM
that looks right, it appears you do your proper crimp in two stages,
one step to fold the strain relief ears on the lug
one step on a separate die to crimp the proper gauge wire.

thanks!
Title: Crimper for our cars connectors
Post by: daminc on August 22, 2012, 09:24:56 PM
that tool is a mini version of the lug crimper I used running bond wires
Title: Crimper for our cars connectors
Post by: jcassity on August 24, 2012, 09:17:27 PM
got one on order today,, must now seek a bundle package of pins for #10 on down assortment of automotive connectors.  Plan to replace ign switch ends on masons bird before he jumps out of the nest and off to college in charlottsville va
Title: Crimper for our cars connectors
Post by: rodsterh on August 25, 2012, 09:25:44 AM
Has anyone ever seen the spot in a harness where a bunch of grounds come together? Looks like the bare stranded wires are 'crimped' together under extreme pressure making a nice flat compact crimp. Always wondered about that tool. Must take a bit of set up to get correct, too little pressure the crimp comes apart, too much pressure and the it's flattened to the point of weakness.
Title: Crimper for our cars connectors
Post by: jcassity on August 25, 2012, 01:06:37 PM
No i have not, I am aware of a huge amount of ground terminations on the transmission tunnel like direcly below your radio.
A welded stud catches a whole bunch of grounds there.
got a pic or general location of this ground you speak of?

I got my crimper in today and its the perfect tool just like the one Mike posted a link to.  T&B / Burndy make them so i optioned for the T&B version, would rather have had the burndy one but its lead time was 45days.

close up of the jaws and a typical terminal that would require this crimper.
Its a two crimp process to do it like oem.
ignore the other stuff around it, thats another converstation im having with one of my job sites.
Title: Crimper for our cars connectors
Post by: rodsterh on August 26, 2012, 04:18:30 PM
Quote from: jcassity;396627
No i have not, I am aware of a huge amount of ground terminations on the transmission tunnel like direcly below your radio.
A welded stud catches a whole bunch of grounds there.
got a pic or general location of this ground you speak of?



Here it is. I don't remember the specifics but I think it was from a piece of Ford harness I got at a junkyard. I unwrapped it to see how the crimps were made and found this. Very interesting...

X
Title: Crimper for our cars connectors
Post by: Crazy88 on August 26, 2012, 05:31:15 PM
Spliced and soldered.  I don't recall seeing these in our harnesses, but I have seen them in a few older Ford's.
Title: Crimper for our cars connectors
Post by: rodsterh on August 26, 2012, 08:45:42 PM
No, not soldered (in the traditional way).

I did some more research and am thinking it's ultrasonic welding. Very neat.

[INDENT]The ultrasonic welding process creates solid-state metallurgical bonds without producing arcs, sparks, or fumes, or melting wires. Ultrasonic technology eliminates any need for filler metal materials or for clipping, soldering, crimping, or dipping. [/INDENT]
Title: Crimper for our cars connectors
Post by: Crazy88 on August 26, 2012, 10:16:14 PM
Perhaps so.  The ones I have seen had solder visible, but I'll readily admit that I have not seen every type of connection ever used either.
Title: Crimper for our cars connectors
Post by: TOM Renzo on August 27, 2012, 12:54:44 PM
Chiming in here if i am not mistaken those wires are spot welded. I was told by a wiring engineer from GM that the auto industry as well as other industries will not be allowed to solder in the future. As the matter of fact they are going to ban solder as we know it. That is why i have stored up app 60 POUNDS of the stuff. I have had several issues with the over the road rigs that use solderless connections. They stink they are a real headache and if not redesigned we are in a heap of trouble. Thanks.
Title: Crimper for our cars connectors
Post by: jcassity on August 27, 2012, 03:41:32 PM
speaking to solder, in my industry of high and low voltage power, Tin is an acceptable means of coating copper buss bars and the like.
If the industry leans towards tin as an acceptable means to coating wire, then yes the process of soldering may need changed since tin is so hard.

I thought the weld shown would have been something like a cad weld without the mold but on an electrical scale like arch welding the copper together.