Turning inserts are playing more and more roles in industrial production, but most people don't know how to choose turning inserts. When choosing a turning insert, first look at the parts of the turning insert, focusing on its size and process type, as well as its workpiece material and batch. At the same time, its machine tool and parameters must also be looked at. It is also necessary to look at the tool selection and how to apply it, and carefully look at how its troubleshooting is.
When looking at the parts and workpiece materials of the turning insert, carefully analyze the size and quality requirements of the surface to be processed, and also carefully observe its process type (longitudinal turning, face turning and profiling cutting) to see if it is an outer circle , Internal turning, you should also ask the person in charge whether it is rough machining, semi-finishing or finishing. As for the tool path, the number of passes, and the tolerance, we should also try our best to check.
To determine the material of a turning insert, focus on its machinability, cast or pre-machined surface, chip breaking properties, hardness, and alloying elements. Machine parameters depend on stability, power and torque (especially for larger diameters), part clamping, position of the tool, tool change time and number of tools in the tool holder, spindle speed (rpm) limitation, bar feeder Also if there is a sub-spindle or tailstock, also ask if it uses all possible supports, is it easy to program and cutting fluids.
The diamond-shaped turning insert has the characteristics of good process adaptability, large entering angle, suitable for turning and facing, and good tool tip strength. But turning inserts can vibrate when turning slender parts. Regarding how to apply the turning insert is the most important factor to consider when selecting the turning insert, the tool path has a significant impact on the machining process. It affects aspects such as chip control, insert wear, surface quality and tool life.
And in practice, tool holders, insert geometries, grades, workpiece materials and tool paths can have a considerable impact on cycle time and productivity. Choose normal turning when using turning insert relief for internal turning with positive inserts and when lower cutting forces are required. Chip breaking is optimized by changing the depth of cut, feed or insert geometry.