How works G83 ?

[Koalas]

Hello,

Who could explain me how G83 is working. I'm programing a Citizen C16 and I have never used it before.


Thanks for your help

[Geof]

Peck drill cycle which goes to the depth Z at the feed rate F and retracts to the position R every time it has drilled the distance Q

G83 Z F Q R

Excuse the inch measure I don't think in metric, Z0.0 is at the top of the workpiece.

To drill 1.000" deep at a feed of 10.0" per min. retracting the drill every 0.200" back to a position 0.100" away from the workpiece.

G83 Z-1.0 F10.0 Q0.20 R0.10

You can also put X and Y coordinates for the hole in the G83 line or move to the hole position before this line. This can be subject to a Setting or Parameter that allows the G83 to operate without X and Y entries. Also the retraction position can be controlled by a Setting or Parameter.

[Equinox]

G73 Has a self defined peck that I set as .010... Seems to work for me and shorten the cycles of deep hole drilling. I only use G83 in gun drilling apps or small holes.

[cogsman1]

G83-(option) Peck drilling cycle. There are (2) parameters related to G83.
Control Param #8125 "G83 Rapid" if ON then the pecks do NOT come out of
the hole, they only back up the amount of Setup1 Param "G83 Retract"
to break the chip and then start feeding again.

Setup1 Param "G83 Retract .02" is the amount to rapid back into the
hole from the last peck for clearance.

I suggest...
Setup1 Param "G83 Retract"=.02
Control Param #8125 "G83 Rapid"=OFF

Example-
G0 Z-.05 T22
G83 Z1. F.001 R.03 Q.04 P0

Z1. =Z position of the bottom of the hole

F.001 =Feed in IPR or IPM

R.03 =Rapid from current Z position the R amount incrementally.
If starting at Z-.05 and R=.03 then the Z axis rapidly
positions to "Z-.02" and after every peck Z retracts to
the same position "Z-.02". If you use "R-.03" it is the same
as "R.03". Leave R out to start from current Z position.

Q.04 =Peck amount

P0 =Dwell amount at the bottom of the hole. You can just leave
P off the command line if you want

K4 =If face off center drilling use K for the amount of holes
Just leave K off the command if only one.

H90. =If you have C axis option and using K

[sergiomene]

hello,
I guess I am in the same kind of need than Koalas.
Im trying to program a g83 drill cycle for 12 holes 19/32 dia.x 16 depth.
My problem is I have to do it for general electric control (mark century 2000)
and this is an example of how the g code is

G83X_Y_Z_F_P1=_P2=_P3=_P4=_P5=_P6=_P7=_

if there is any gamar error i apologize and thanks for the help

[amirkhan792004]

Hi ALL
we have Index GE42 NC. with Mark century Control..

When we power the machine this under message appeared

Power-Up Diagnostics

1-DRM SF.EC-40
ERROR COUNT=499

To enter Virtual terminal mode hit any key, wait

no responce after wait..

please help us.

We have no manual.. if any body have mark century 2000 control manual. please email me.

thanks

[g-codeguy]

Originally Posted by amirkhan792004 Hi ALL we have Index GE42 NC. with Mark century Control.. When we power the machine this under message appeared Power-Up Diagnostics 1-DRM SF.EC-40 ERROR COUNT=499 To enter Virtual terminal mode hit any key, wait no responce after wait.. please help us. We have no manual.. if any body have mark century 2000 control manual. please email me. thanks

Sorry I can't help you. I would try asking this question in a thread of your own. Any one looking at this thread is going to be trying to help the original poster with his G83 question.

Probably most looking won't know anything about your problem. Asking in a thread of your own will mean that someone familiar with your control may see the question, and try to help you. They may never look into this thread about G83 drilling.

[Superman]

To enter Virtual terminal mode hit any key, wait

That bloody "any key" gets you every time - Bill Gates stikes again. LOL

[slidingheadfred]

Originally Posted by Equinox G73 Has a self defined peck that I set as .010... Seems to work for me and shorten the cycles of deep hole drilling. I only use G83 in gun drilling apps or small holes.

i have also used this drilling cycle but only when using high pressure coolant directed at the hole.

Will this work without the h/p coolant? as on other machines that i used to run i was told not to change the cycle from g83 as it might break the drills/taps due to insufficent coolant flow evacuating the swarf from the hole, by the production engineer.

[stevo1]

Originally Posted by slidingheadfred i have also used this drilling cycle but only when using high pressure coolant directed at the hole. Will this work without the h/p coolant? as on other machines that i used to run i was told not to change the cycle from g83 as it might break the drills/taps due to insufficent coolant flow evacuating the swarf from the hole, by the production engineer.

This will most defiantly work without using high pressure coolant or through the tool coolant. The G83 cycle is more for deep hole drilling were a small peck is not enough to clear the chip all the way out of the hole. The G73 cycle is just enough to break the chip. This also depends a lot on the material that you are running and what kind of chip it is making. What kind of material and depth are you drilling into? Also what kind of tooling?

I use mainly G73 cycles as they are much faster than the G83 cycles. Does your production engineer have experience with machining, materials, and tooling? Because depending on your application it seems absurd to suggest using only G83 cycles. Sounds like you might have room for cycle time improvements .



Stevo

[slidingheadfred]

Originally Posted by stevo1 This will most defiantly work without using high pressure coolant or through the tool coolant. The G83 cycle is more for deep hole drilling were a small peck is not enough to clear the chip all the way out of the hole. The G73 cycle is just enough to break the chip. This also depends a lot on the material that you are running and what kind of chip it is making. What kind of material and depth are you drilling into? Also what kind of tooling? I use mainly G73 cycles as they are much faster than the G83 cycles. Does your production engineer have experience with machining, materials, and tooling? Because depending on your application it seems absurd to suggest using only G83 cycles. Sounds like you might have room for cycle time improvements . Stevo

unfortunatly no longer with this firm, but materals used were mainly en1a(212a42) some 303 stainless and cfs3bk bc 6323 this was a real pig to m/c as it would not chip at all prod eng. looked into it, and found that its main use was for rollcages.