question

bad to the bonz

Newbie

Original poster

Feb 13, 2014

3

10

• Feb 13, 2014

• #1

how big of a hole do I need to drill to make blind welds

 

daveomak

RIP - Gone but not forgotten.

OTBS Member

★ Lifetime Premier ★

Nov 12, 2010

27,118

4,991

Omak,Washington,U.S.A.

• Feb 13, 2014

• #2

Depends on what you are welding with and thickness of the material...

 

bad to the bonz

Newbie

Original poster

Thread starter

Feb 13, 2014

3

10

• Feb 13, 2014

• #3

it is 1/8"x 1/4"x1.5"

 

bluffton smoker

Smoke Blower

Aug 15, 2012

132

12

Lucasville, OH

• Feb 13, 2014

• #4

I drilled 1/4" holes in my 1/8" flanges for the blind welds. This worked out great. Any larger and you have too much void to fill. Any smaller and I didn't feel like I grabbed enough metal to make the weld stick...

 

Last edited: Feb 13, 2014

maple sticks

Smoking Fanatic

Jan 19, 2013

316

23

Michigan-Florida

• Feb 13, 2014

• #5

I think your asking if a 1/4" hole in 1/8" flat stock that is 1.5" wide, yes if you use a hot welder. Use rod with little flux like 6010 or 6011. If your using a wire feed turn it higher than you normally would to weld 1/8'. You will find the hole fills quickly.