How To Set Up A Parting Off Tool
A narrow insert creates lower cutting forces and saves material.
How to set up a parting off tool. Attach the dial indicator to a Noga holder found in the metrology cabinet and place gently on the guideways DO NOT slide the holder along the guideway. Set the tools height lay it against the parts face and lock the tool. Second if the tip of the parting tool is ground at an angle it will minimize the nib further.
The solution when using carbide inserts for parting off it is best only to use then to within a millimetre or two from the middle of workpiece. Parting tools are used to create narrows grooves and cut off parts of the stock. The more rigid the machine the easier it is to part things off.
3 Go all modern and use an insert type parting blade. This video covers how to properly grind the tool how to set the tool so it is ri. There will then be a forward component to the forces acting on the tool pulling it into the work and the backlash present will allow the tool to tend to move.
Holding the tool against the face of the part may help with this. A part off tool is not a substitute for a cut off saw. Same thing applies to a facing tool Look at your parting tool and blade and take note of the shape and set up accordingly.
Then use a conventional HSS parting tool cutting to the right to finish the job. Put a ruler between the tool tip and the workpiece and crank it down so the ruler is held between the two. Even if the tool is set exactly on centre before parting these effects will tend to force the tool below centre as the work progresses.
Simply set it down in place Position the contact tip against the toolholder and move the cross slide. If the carbide cutter has an angle on it it is usually quite small. Choose an insert geometry designed for parting-off.