Thanks for the reply Guy, We have tried a wide range of pressure and speeds using everything from a hydraulic press to an arbor press. They still split and according to the standoff people that's to be expected. We have found that making the hole within a couple of thousandths of the standoff shank diameter helps. In our case an electrically active terminal is a standoff that a lug gets screwed to. We don't have any problem with bifurcated and turret terminals. The bigger questions is how do people address splits like this in a part that is not directly referred to in the J-STD or 610? Do you worry about entrapment of processing fluids ad mentioned in J-STD? Thanks, Ken -----Original Message----- From: Guy Ramsey [mailto:[log in to unmask]] Sent: Tuesday, February 06, 2001 4:54 AM To: TechNet E-Mail Forum.; Ken Bloomquist Subject: RE: [TN] Standoffs IPC-A-610 says that the performance requirements apply to electrically active terminals. So they would apply to bifurcated and turrent terminals. In a former life, we accepted splits as normal for certian types of terminals. Then we hired a guy with lots of experience and knowledge, a process engineer. He taught us how to set up the swage tools. The splits went away. The secret was speed. We were forming the terminals too quickly. The press had two adjustments, a regulator for pressure, the other was a valve controled the speed with which the pressure was applied. The correct combination of pressure and speed gave target terminals. Guy Ramsey American Competitiveness Institute Senior Lab Technician / Instructor 610 362-1200 ext 107 -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Ken Bloomquist Sent: Monday, February 05, 2001 1:57 PM To: [log in to unmask] Subject: [TN] Standoffs Hi Technetters, I have a question on threaded standoffs, swaged into printed wiring boards, that are used for mounting wire lugs and chassis mounting. I'm interested in both roll swaged and flared flange both soldered and non-soldered. Using the guidelines of J-STD-001, do the same rules for splits and cracks apply to standoffs as do for bifurcated and turret terminals? In discussions with numerous standoff manufacturers they tell me that these parts WILL split but do not affect form, fit or function. J-STD-001 seems to be concerned with entrapment of processing fluids and does not address standoffs. How do others handle these type of components especially regarding splits and cracks that extend into the shank? Ken Bloomquist General Dynamics Ordnance and Tactical Systems Aerospace Operations P.O. Box 97009 Redmond, WA 98073-9709 425-885-5000 <mailto:[log in to unmask]> [log in to unmask] http://www.gd-ots.com/aehome.html <http://www.gd-ots.com/aehome.html>