In a message dated 9/28/99 7:03:12 PM Central Daylight Time,
[log in to unmask] writes:

> hi,
>
>  i assume you have a universal lead forming die of some sort.  you surely
>  don't want to trim and form with hand tools.  so, you'll need to trim and
>  form the parts before tinning for two reasons.  first, the tinning can goof
>  up your lead forming and trimming die.  second, the tie bar is going to
give
>  you a lot of grief when you dip the leads into a solder pot, or wave, or
>  whatever.
>
>  our assembly operators are experts at hand tinning these parts (forget
about
>  asking us to do them).  it can be done, but it's tedious; and your
operators
>  might not talk to you afterwards.  i'd definitely lean towards getting them
>  done 'outside'.
>
>  phil

Thanks Phil!

Yes we do have universal tooling, we have a Manix press and adjustable
tooling. But in the past, they were pre-tinning the parts and then cutting
and forming them. I that might be because when you first are confronted with
these parts, the tie bars give you a sense of false security in that they
prevent the leads from getting tweeked while tinning them...but without
thinking about the bridging you'll see during the tinning process. But one
needs to understand (like you said) it is a VERY tedious job  Thanks for the
great tip! Makes a lot of sense...

Looks like I might be buying lunch for few operators the next few days (so I
don't get lynched...hehehe)

-Steve Gregory-

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