You should notify the subbie about the nonconformance and determine the
reason that it occured.  You have a lap joint to the pillar.  This gives you
no mechanical attachment, only the wetted solder bond.  Is this acceptable?
what are the forces on these joints?  This is not as strong a joint as a
hook connection and the change in direction of the wire may cause a problem
in vibration and thermal shock tests.
I recommend returning the non-conforming lot to the subbie to be corrected
to compliance to the print.  See IPC-HDBK-001 for a fuller description of
wire and lead- wrap around.  What workmanship acceptance requirements are
specified?
        Al Cash

> ----------
> From:         Ian Squires[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;Ian Squires
> Sent:         Friday, May 08, 1998 1:55 PM
> To:   [log in to unmask]
> Subject:      [TN] wire terminations
>
> Folks.
>         Appologies for the previous 'no heading' message
> We have had a load of assembled PCB's in from a new supplier.
> trouble is they are not to drawing and i'm being asked if we can accept
> them. The problem is that
> we have a flying lead connected to two through hole pillars. The drawing
> requires a 270 degree hook
> on the wire before it is soldered to the post. The subbies have soldered
> the wire parallel to the post (straight up and down)
>
> Question: is this as good as the requested hook method
>         :will there be reliability problems in the future
>         :would vibration /shock tests be required to prove the deviation
> is acceptable
>         :should we just reurn to the subbie for correctio ;to drawing'
>
> any help 'donations' gratefully accepted
>
>
> Regards
> Ian Squires
> Senior Production Engineer
> -------------------------------------------------------
>
> Graseby Dynamics Ltd
> Park Avenue, Bushey, Watford, Herts, WD2 2BW
> Web Site: www.gradyn.co.uk
> Phone:    01923-228566 xt 295
> Fax:      01923-221361
> E-mail:   [log in to unmask]
>
> Registered in England no. 480992
> Registered office:
> 765 Finchley Road, London, NW11 8DS
> -------------------------------------------------------
>
> ################################################################
> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
> ################################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with
> following text in the body:
> To subscribe:   SUBSCRIBE TechNet <your full name>
> To unsubscribe:   SIGNOFF TechNet
> ################################################################
> Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional
> information.
> For the technical support contact Dmitriy Sklyar at [log in to unmask] or
> 847-509-9700 ext.311
> ################################################################
>
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
################################################################