The New “What did you do with your Z today” (with off topic replies) XXXIV

JLarson · 11-27-2019, 07:57 AM

Dealing with a strange issue that some of you guys may have seen before in manufacturing.

We're having trouble welding endcaps on a part. The endcaps are wire EDM'd. When the parts are tack welded, the tack weld is abruptly burning through, creating a crater or blowout. This is a seriously experienced welder who has done this job for years with no issues. Only change is that in the past we've used a punch, not a wire edm, to make the endcaps.

Any idea on whether or not the recast layer created by the wire edm would cause issues with weldability? Thinking about grit blasting the edge, ultrasonic cleaning it, and then trying the weld again.

sx moneypit · 11-27-2019, 07:59 AM

Quote:

Originally Posted by Rusty

I'z up.

I'm up right and breathing. My name isn't in the obit. So that's a good thing.

sx moneypit · 11-27-2019, 08:02 AM

And,good morning folks!

Everybody ready for Turkey day?

madwi · 11-27-2019, 08:03 AM

Quote:

Originally Posted by JLarson

Dealing with a strange issue that some of you guys may have seen before in manufacturing.

We're having trouble welding endcaps on a part. The endcaps are wire EDM'd. When the parts are tack welded, the tack weld is abruptly burning through, creating a crater or blowout. This is a seriously experienced welder who has done this job for years with no issues. Only change is that in the past we've used a punch, not a wire edm, to make the endcaps.

Any idea on whether or not the recast layer created by the wire edm would cause issues with weldability? Thinking about grit blasting the edge, ultrasonic cleaning it, and then trying the weld again.

Very possible there is scale buildup from the brass wire. Ultrasonic would be a good idea between the two operations anyway as it is submerged in dielectric oil in the edm machine.

*Edit* I lied, they use deionized water in the wire machines if I recall correctly.

BettyZ · 11-27-2019, 08:03 AM

Got to DMV an hour before opening. First car here. Now I have to take a **** ..

Sent from my SM-G955U using Tapatalk

jwick · 11-27-2019, 08:06 AM

Quote:

Originally Posted by JLarson

Who's ready for first, second, and third Saturday this week?!

Definitely this guy.

I’m already working on 1st Saturday. Got the four thing going!

Zingston · 11-27-2019, 08:06 AM

Quote:

Originally Posted by BettyZ

Got to DMV an hour before opening. First car here. Now I have to take a **** ..

Sent from my SM-G955U using Tapatalk

Its always somthing when dealing with DMV (gov). Geez!!

sx moneypit · 11-27-2019, 08:07 AM

Quote:

Originally Posted by BettyZ

Got to DMV an hour before opening. First car here. Now I have to take a **** ..

Sent from my SM-G955U using Tapatalk

madwi · 11-27-2019, 08:09 AM

Quote:

Originally Posted by BettyZ

Got to DMV an hour before opening. First car here. Now I have to take a **** ..

Sent from my SM-G955U using Tapatalk

Open the door and pop a squat. Assert dominance over the others.

BettyZ · 11-27-2019, 08:10 AM

Quote:

Originally Posted by madwi

Open the door and pop a squat. Assert dominance over the others.

mark my territory with a nice loaf

JLarson · 11-27-2019, 08:14 AM

Quote:

Originally Posted by madwi

Very possible there is scale buildup from the brass wire. Ultrasonic would be a good idea between the two operations anyway as it is submerged in dielectric oil in the edm machine.

*Edit* I lied, they use deionized water in the wire machines if I recall correctly.

Correct, deionized water is used.

madwi · 11-27-2019, 08:20 AM

Quote:

Originally Posted by JLarson

Correct, deionized water is used.

I am not a welder but If I had the material on hand I'd clean up the edges on one up real good and try it again.

BettyZ · 11-27-2019, 08:31 AM

Quote:

Originally Posted by madwi

I am not a welder but If I had the material on hand I'd clean up the edges on one up real good and try it again.

I'm not a welder but I saved 6% on my car insurance by switching to AllState.

Zingston · 11-27-2019, 08:41 AM

Quote:

Originally Posted by BettyZ

I'm not a welder but I saved 6% on my car insurance by switching to AllState.

Well... hmmm... all that savings actually kinda makes you a welder.

jchammond · 11-27-2019, 08:49 AM

Headed outside

Gonna get 3.5hrs in today...hopefully

11-27-2019, 07:57 AM	#4576 (permalink)
JLarson A True Z Fanatic Join Date: Jun 2017 Location: Media, PA Posts: 4,074 Drives: 14 Nissan 370z MR M6 Rep Power: 2684370	Dealing with a strange issue that some of you guys may have seen before in manufacturing. We're having trouble welding endcaps on a part. The endcaps are wire EDM'd. When the parts are tack welded, the tack weld is abruptly burning through, creating a crater or blowout. This is a seriously experienced welder who has done this job for years with no issues. Only change is that in the past we've used a punch, not a wire edm, to make the endcaps. Any idea on whether or not the recast layer created by the wire edm would cause issues with weldability? Thinking about grit blasting the edge, ultrasonic cleaning it, and then trying the weld again. __________________ 2014 370z Touring Sport Magma Red MT // BP Single Turbo 6467 // 63mm TB's // Z1 Ported Upper Mani // RJM Pedal // Zspeed Stage 3 Clutch // 526 WHP, 451 WTQ 2006 350z (Sold) // 1990 300zx (Sold) // 1985 300zx 2+2 (Sold)

11-27-2019, 08:02 AM	#4578 (permalink)
sx moneypit Premium Member Join Date: Oct 2014 Location: Memphis,Tn. Age: 67 Posts: 3,334 Drives: 2010 370Z PG 6 spd Rep Power: 2684371	And,good morning folks!Everybody ready for Turkey day? God-Speed, Rusty, Hotrodz and 4 others like this.

11-27-2019, 08:03 AM	#4580 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	Got to DMV an hour before opening. First car here. Now I have to take a **** .. Sent from my SM-G955U using Tapatalk JARblue, Rusty, Hotrodz and 7 others like this. __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

11-27-2019, 08:49 AM	#4590 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	Headed outside Gonna get 3.5hrs in today...hopefully Rusty, Hotrodz, sx moneypit and 4 others like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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