For the operation of CNC lathes, what we care about is the use of cutting tools, which have very high requirements in terms of cutting efficiency and tool replacement speed. The efficiency of tool use is basically consistent with the operating efficiency of the lathe. Today, our CNC lathe manufacturer will explain to you the common solutions for compensating the radius of the tool tip arc in CNC lathes.
Blade tip arc radius compensation instruction G41G01/G00X-Z-Blade tip arc radius left compensation G42G01/G00X-2-Blade tip arc radius right compensation G40G01/G00X-Z-Cancel Blade tip arc radius compensation discrimination method: When viewed along the diction of tool motion, the tool on the left side of the workpiece is called left compensation. Discrimination method -

looking along the direction of tool movement, the tool is working. After compensating for the radius of the tool tip arc, the tool will automatically deviate from the contour radius of the part by a certain distance. First observe along the positive direction of the Z-axis towards the negative direction, and then observe along the direction of tool movement. If the tool is on the left side of the workpiece, use G41, otherwise use G42. G41 is used for outer circle processing, G42 is used for inner hole processing. Therefore, the radius size of the blade tip arc must be input into the system.
Looking along the direction of tool movement, use G41 on the left side of the workpiece and G42 on the right side. X. The Z value is assigned to the drawing size, and the machine tool will automatically compensate. Before using G41 and G42, be sure to set the tool data properly. Addendum: "CNC Machine Tools and Programming" is a book compiled by Han Yuyong, which mainly includes an overview of CNC machine tools, mechanical structures of CNC machine tools, and CNC machining. Due to the fact that the CNC program of a CNC lathe machining machine is designed for the tool position points, namely point A or point O, on the tool, it is necessary to align this point with the starting point in the program during tool alignment. In the absence of tool arc radius compensation function during CNC lathe machining, the programmed point will move according to the programmed trajectory, resulting in over cutting or over cutting. The so-called 'letting go of the tool' refers to the insufficient rigidity of your machining system (including lathe body, cutting tool, workpiece), which causes deformation due to the influence of cutting force. Another issue is that the machine tool screw itself has gaps, which can also cause damage to the tool.
The above is the commonly used compensation scheme for the tool tip arc radius of CNC lathes compiled by CNC lathe manufacturers. We hope that the above explanation will be helpful for everyone when using CNC lathes in the future.