Cutting toughened glass

[uztrac]

Can I get advice from learned forum members as to how to cut a hole in a side window glass that is laminated ? thanks.

 

[Sharpy]

Are you sure its laminated? Side windows are usually toughened. To the best of my knowledge you make the hole in it before you toughen it.

 

[Pennine Ploughing]

Depends on the size of hole, but a Brass hammer and brass punch should put a hole big enough for what you want

Sorry it cannot be done on toughened glass

 

[uztrac]

Are you sure its laminated? Side windows are usually toughened. To the best of my knowledge you make the hole in it before you toughen it.

Yes,you are correct it is toughened glass.

 

[Exfarmer]

You cannot drill toughened glass it will just shatter

 

[uztrac]

Thanks to you all,my question has been answered.

 

[Sharpy]

If it's a big deal not having the hole could you try some of the plant glazing people who will have the contacts to get it made?

 

[Mursal]

Couple of lads on U-Tube using dental equipment and water, looks interestind

 

[Kidds]

Couple of lads on U-Tube using dental equipment and water, looks interestind

Until you hit a pothole

 

[GeorgeK]

A good youtube vid by Cody, where he attempts to dissolve a hole in toughened glass with acid in an attempt not to shatter it. Spoiler: it doesn't work. Toughened glass gets its strength from being cooled in a specific way to create tension across the structure so it's constantly pulling itself together. Any damage to the structure results in the tension being released and the whole lot flying apart

 

[Exfarmer]

A good youtube vid by Cody, where he attempts to dissolve a hole in toughened glass with acid in an attempt not to shatter it. Spoiler: it doesn't work. Toughened glass gets its strength from being cooled in a specific way to create tension across the structure so it's constantly pulling itself together. Any damage to the structure results in the tension being released and the whole lot flying apart

have not watched the video but anyone attempting to use acid must have balls of steel. It requires Hydrofluoric acid, which is one of the nastiest chemicals on the planet

 

[GeorgeK]

have not watched the video but anyone attempting to use acid must have balls of steel. It requires Hydrofluoric acid, which is one of the nastiest chemicals on the planet

Makes battery acid look like coca cola! If you have an interest in science Cody does some interesting and varied experiments

 

[Blue.]

I’ll never forget my bro in-law trying to cut toughened glass with the angle grinder,it went a similar way to his attempt at removing petrol fumes out of a petrol tank with a Hoover.???

 

[Av Gorritt]

I once tried to cut a mounting hole for a windscreen wiper in a toughened glass windscreen . I carefully made a little cup/ reservoir out of plasticene , stuck it over where I needed the hole , filled it with water , and with a VERY slow speed drill and masonry bit , went to work . It all went wonderfully well until the drill was just pricking through, and then disaster , the whole lot shattered into a million little square pieces ! Moral of the story - don't be a tightarse . Cost me a new windscreen when all I was doing was trying to use a wiper motor that I already had , rather than buy the correct one

 

[Deutzdx3]

You could take it and have the hole cut with a water jet. It shouldn’t break it. Worth a call to a water jet company close to you to see if they have done it and have knowledge if it’ll stay in one piece.

 

[Pennine Ploughing]

No water jet won't do it either, in theorie it cannot be done, in practice a diamond tipped drill, plenty of lubricant, and gently grind a hole in it, use the diamond to grind not drill, and even then success rate is slim

 

[Hesstondriver]

i ordered a new piece of glass for the wood burner , got the size wrong!

had he option of returning it , but thought id just trim a few mm of the side.

the result was i ordered another glass piece and got an ear full from OH