Hi,
Some comments here:
At first the range of conductor for 350550-2 is 20~14 AWG and the
insulation range is 0.13"DIA max,so the wire you selected could match
this contact.
1) Why are the automated and hand tool crimp height specifications
different?
You know there have many difference between automatic machine wire crimp
and hand tool wire crimp,like as the crimping speed of die,crimping
force of die and etc,so the design engineer defined the different height
for these two method to get the best crimping effect(e.g.
appearance,pull force).
2)Is there an issue with just setting up the automated tool to the hand
tool crimp height specifications?
I think every contact specifications are evaluated by the TE engineer
before it be released,from the information present by you I just know
that you set up the correct conductor height,so here some additional
reminder for you reference:
Are the conductor height of terminals in tolerance after crimping?
[.69+/-.002]
Do you set up a correct crimping width of teminals?[.090]REF
Do you set up a correct strip length?[.172+/-.015]
Do you use the correct crimping applicator&die from TE?
Any specification&information you wanted tell me please.
Thank you
Edwin
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Forrester, Michael
(H USA)
Sent: Tuesday, April 07, 2009 12:05 AM
To: [log in to unmask]
Subject: [TN] Wire Crimps: Machine Vs Hand Tool Specs
We have an application that uses a tyco 350550-2 crimped on connector.
It is being crimped onto
a 14AWG wire made up of 1050 strands of 44 AWG wire. The wire has a
nom. wall of .015" and an nom OD of .115". The standard pull test calls
out for min 50 lbs. If we crimp it in automated machines per spec to
.069" crimp height, we fail the pull test at an avg of 47 lbs. If we
hand crimp it to spec at .063", we get a pull strength avg of 55 lbs.,
which passes. Due to the volume, the automated machine process is
preferred. I have two questions: 1) Why are the automated and hand tool
crimp height specifications different? 2)Is there an issue with just
setting up the automated tool to the hand tool crimp height
specifications? Thank you.
Best Regards,
Michael Forrester
Sr. Product Engineer
Siemens Healthcare Diagnostics
101 Silvermine Rd.
Brookfield, CT 06804
PH: (203) 740-6452
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