Tips film #41 - Analyze tool wear in solid carbide drilling

[@ForensicCats]

I respect how still you stand while speaking... like a damn chuck head...only your mouth moved. Priceless. Ty.

[@sharg0]

What I'm missing is information about spot drilling in combination with solid carbide drills (when to use or not and choice of angles).

[@cbbowness]

I called my sandvik rep and got this: Anything over 8Xd definitely need pilot. 5xd you may want to spot with something with a spot drill with an angle equal to or greater than the drill being used. Also, when drilling radially a small spot may prevent drill walking. When you start drilling deeeeeeeep holes 12XD -18XD and up you should always call and make a plan of attack with your local tool rep.

[@sandvikcoromant]

Hi, Thank you for this input. We will add this to the list of subjects for future tips films.

[@chesshooligan1282]

Good stuff.

[@sarlsgocnc4322]

♡

[@AdamEarl2]

Hello Sandvik, I heard that the surface finish of the chip also says a lot. Shiny means a good cutting speed, dull is too slow. Do you agree?

[@sandvikcoromant]

Yes you can say the surface finish of the chip indicates you have the correct data for a successful operation but the shape of the chip is the most important factor when determining excellent chip control. Other factors can contribute to a shiny finish of the chip such as material hardness, coolant type and concentration with a dull chip showing not enough heat in the process so the solution would be to increase the speed. Best regards Robert Smith Global Application Specialist

[@JCST-mq6cr]

El arte del mecanizado

[@molitovv]

Chip Jammin’ 🇯🇲

[@farukozgur4720]

🍻