Threading Issue

J

JZ.

Aluminum

Joined

Sep 26, 2018

Location

pa usa

• Nov 20, 2018

• #1

SODICK AQ537L
I've never really had much trouble with the AWT on my machine. Lately I've noticed that sometimes after the wire cut the wire seems likes it is has so much back tension. When it proceeds to the next thread position and the pipe tube goes down it fails to take the wire with it, or sometimes there is just barley enough wire down thru the tube to get it started threading. Ive adjusted my water pressure while threading and made sure the pipe tube is in good condition. Before I start tweaking settings if anyone has some ideas or suggestions that would be greatly appreciated.
Thank You!

 

Shane030173

Aluminum

Joined

May 21, 2013

Location

PA

• Nov 20, 2018

• #2

is your connect type at 01 or 02? If set to 01 the little arm that pinches the wire may have a groove in it. This causes the wire to slip through it and not pull it down with the pipe. We have our machines set at 02 "high speed threading" seems to work the best.

 

J

JZ.

Aluminum

Joined

Sep 26, 2018

Location

pa usa

• Nov 20, 2018

• #3

Shane030173 said:

is your connect type at 01 or 02? If set to 01 the little arm that pinches the wire may have a groove in it. This causes the wire to slip through it and not pull it down with the pipe. We have our machines set at 02 "high speed threading" seems to work the best.

Click to expand...

Thank you! I will check and see what it is at and if I have a groove.

 

Shane030173

Aluminum

Joined

May 21, 2013

Location

PA

• Nov 21, 2018

• #4

JZ... have you resolved your threading issue??

 

N

nlancaster

Aluminum

Joined

Oct 8, 2018

• Nov 21, 2018

• #5

I am new to EDM and have been running, with assistance, 2 Sodick AG600L, they have the same problem as the OP.

Sometimes the wire will not come down with pipe. Our connect setting is currently set to "2" high speed threading.

And if left overnight after finishing a part light out, the wire may become unthreaded from all pulleys.

 

Shane030173

Aluminum

Joined

May 21, 2013

Location

PA

• Nov 26, 2018

• #6

This sounds like a back tension issue. Are you using a jumbo spool or standard spools of wire?

 

Shane030173

Aluminum

Joined

May 21, 2013

Location

PA

• Nov 26, 2018

• #7

Another thing that could be causing these issues is your Tension Roller. If it has a deep groove the wire will slip through it.

 

N

nlancaster

Aluminum

Joined

Oct 8, 2018

• Nov 26, 2018

• #8

Standard spool of wire, .010 zinc coated.

There is a groove in the tension rollwer, we tried moving the pulley to a non grooved position, same issues.

 

Shane030173

Aluminum

Joined

May 21, 2013

Location

PA

• Nov 26, 2018

• #9

your tension settings should be for an 11 lbs spool...

Standard AWT Backten = 80
STD. Wire Broken Backten = 65
Standard Thread Backten = 80

add 10 to these for 18-22lbs spools.

You may need to reduce you Standard AWT Backten 78-75.

Hope this helps.

 

J

JZ.

Aluminum

Joined

Sep 26, 2018

Location

pa usa

• Nov 27, 2018

• #10

Shane030173 said:

JZ... have you resolved your threading issue??

Click to expand...

Shane030173...Sorry for the delayed response, we shut down for the holiday.
I was able to resolve the threading issue. My tube setting was set at 02 so that was good. I did tweak my threading conditions a little, things seem to be going well. Thanks