How To Set Up A Parting Off Tool

A part off tool is not a substitute for a cut off saw.

How to set up a parting off tool. Second if the tip of the parting tool is ground at an angle it will minimize the nib further. Parting is one of the most misunderstood machining operations on the lathe. Ensure the tip of the tool rests at the same height as the center of the stock.

Parting tools are used to create narrows grooves and cut off parts of the stock. Heavier the better with a directly held parting tool preferably next size up for extra blade stiffness. 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.

A good way to do this is to hold the tool against the face of the part. As I see it the front mounted tool will tend to be forced downwards while the work is trying to climb the tool. Set of 2 HSS Trapezoid Blades 18x 34 Wide x 6 Long for Lathe Parting Cut off Tool Holders-Hard Ground.

The parting tool 116 x 516 x 4 is set at an angle of 5 degrees from the horizontal whilst the chamfering tool is horizontal. Alternatives to a rear tool post for better parting off are-1 Remove the top slide and mount a hefty block tool post direct on the cross slide. I say perpendicular instead.

When machining with long overhangs it is especially important to mount the bar correctly to ensure enough clamping contact. We recommend to use a sub-spindle if available. 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.

When parting-off a component bar or tube it is important to save material and minimize cutting force. A parting tool properly set up will not leave a tit so make sure things are on center. Holding the tool against the face of the part may help with this.