303 ss ,.o6o hole thru on the 30 degree side

D

drylakemachine

Hot Rolled

Joined

May 22, 2008

Location

elmirage ca

• Jan 12, 2017

• #1

Hi, have no idea of an edm's capabilities. Need a wire tie hole ,3 places on the flat outside of a hex. Can it start hole on that angle ?
303 ss se 11/16 hex , .090 from edge hex point to the c/l of a .060 hole. So about 1/2 inch from start to finish. I have 900
pieces. So will this work?
Thanks jim

 

M

moonlight machine

Diamond

Joined

Nov 19, 2007

Location

marysville ohio

• Jan 12, 2017

• #2

drylakemachine said:

Hi, have no idea of an edm's capabilities. Need a wire tie hole ,3 places on the flat outside of a hex. Can it start hole on that angle ?
303 ss se 11/16 hex , .090 from edge hex point to the c/l of a .060 hole. So about 1/2 inch from start to finish. I have 900
pieces. So will this work?
Thanks jim

Click to expand...

I would just drill them.

 

M

moonlight machine

Diamond

Joined

Nov 19, 2007

Location

marysville ohio

• Jan 12, 2017

• #3

Send them here, I'll do them.

 

R

RJT

Titanium

Joined

Aug 24, 2006

Location

greensboro,northcarolina

• Jan 13, 2017

• #4

Yes, a hole popper can do this, but with a drill jig it probably would be faster. Sounds like a hole for a cable though a fastener. Usually done by drilling.

 

S

SeymourDumore

Diamond

Joined

Aug 2, 2005

Location

CT

• Jan 13, 2017

• #5

RJT said:

Yes, a hole popper can do this, but with a drill jig it probably would be faster. .

Click to expand...

Not likely.
The popper would spend maybe 30 secs/hole, including start, breakthrough and index.

Of course, I have not tried using a jig 'cos I got me a popper.

 

R

RJT

Titanium

Joined

Aug 24, 2006

Location

greensboro,northcarolina

• Jan 13, 2017

• #6

Your popper must be faster than mine. I would take 2 - 3 minutes. Ours is 15 years old.

 

S

SeymourDumore

Diamond

Joined

Aug 2, 2005

Location

CT

• Jan 13, 2017

• #7

RJT

Mine is also 15, but I do not believe that newer ones are all that much faster.
2-3 minutes for me would be about 2" of steel or 2.5" of stainless with a 2.9 mm trode. maybe 20-30% more with a 1.5mm ( for that .06 wirehole )

 

JayCrumb

Aluminum

Joined

Aug 16, 2016

• Jan 14, 2017

• #8

I agree with fast-hole EDM as the best option as long as they aren't aerospace.
No core electrode...
Conventional drilling would difficult due to the approach angle correct?

30 seconds max per hole on fast-hole... probably more like 15 seconds if you can stand a little edge blow out on entry.


Jay

 

M

moonlight machine

Diamond

Joined

Nov 19, 2007

Location

marysville ohio

• Jan 15, 2017

• #9

I just spot the hole with an end mill first, then drill. Easy peasy.