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Turning Method Of End Face Groove Of Lathe

Turning the end face groove on a lathe involves removing material to create a groove or recess on the end surface of a workpiece. This process is commonly used for various applications, such as creating O-ring grooves, snap ring grooves, or other types of features. Here’s a general method to turn an end face groove on a lathe:

Step-by-Step Turning Method

Turning Method Of End Face Groove Of Lathe


Secure the workpiece in the lathe chuck or collet, ensuring it is centered and securely clamped. The end face of the workpiece should be perpendicular to the lathe axis.

Selecting the Cutting Tool

Choose an appropriate cutting tool for the groove’s dimensions and material of the workpiece. The tool should have the correct shape and width to create the desired groove.

Tool Height and Alignment

Set the tool height so that it is at the centerline of the workpiece. Align the tool to the desired starting position for the groove on the end face.

Feed and Speed Settings

Determine the appropriate feed rate and cutting speed based on the workpiece material and groove dimensions. Consult machining data or refer to cutting tool manufacturer’s recommendations.

Initial Cuts

Start the lathe and bring the cutting tool into contact with the workpiece at the starting position. Make light initial cuts to establish the groove’s depth and width.

Groove Depth

Gradually increase the depth of cut while maintaining a consistent feed rate. Use calipers or other measuring tools to monitor the groove depth as you progress.

Groove Width

Adjust the tool position to control the groove’s width. Make multiple passes along the groove’s length until the desired width is achieved.

Smooth Finish

To achieve a smooth finish, use a finishing pass with a smaller depth of cut. This helps remove any remaining imperfections and enhances the groove’s surface quality.

Check Dimensions

Periodically check the groove dimensions using precision measuring instruments to ensure they match the design specifications.


After completing the groove, remove any burrs or sharp edges left from the turning process using a deburring tool.

Quality Inspection

Perform a final inspection of the groove’s dimensions and surface finish to ensure it meets the required standards.

Remember to use appropriate cutting fluids or lubricants during the turning process to enhance tool life and improve machining performance. Always wear appropriate safety gear, such as safety glasses and gloves, while operating the lathe. The actual turning method may vary based on the specific groove design, workpiece material, and lathe capabilities. Always refer to the lathe’s user manual and follow best machining practices for optimal results.

There are often some more complicated end face grooves on disc parts, and these end face grooves are processed on a lathe.

  • When cutting a narrow straight groove on the end face of a lathe turning end face straight groove. A tool tip of a lathe grooving tool is equivalent to turning an inner hole, so the secondary flank surface of the tool tip must be ground into an arc shape according to the size of the end face groove arc, and a certain relief angle is ground to prevent it from being with the groove. arcs collide.When turning wide and straight grooves with high dimensional accuracy on the end face, the left and right offset cutters can be used to turn the “knife pick” method. When fine turning, first use the left-biased tool to turn the inner side +70 a o. 046rrirri, and feed the bottom surface of the turning groove from the outside of the straight groove to the inside, and then use the right offset tool to turn the outside ≠ 220-0 stare’mm, and carry out “connection” from the inner/side of the straight groove, and use the tool to process It can ensure the flatness of the bottom of the groove, and there will be no obvious knife marks at the “knife pick up”.When turning deep straight grooves, in order to increase the rigidity and strength of the cutter head, a circular-arc reinforcing rib can be made behind the lathe turning tool.
  • The T-slot on the end face of the lathe is more complicated, and it must be completed in three steps using three turning tools.In the first step, a flat grooving knife is used to cut straight grooves; the second step is to use an elbow right grooving tool to turn the outer groove; the third step is to use an elbow left grooving tool to turn the inner groove. The width of the main blade of the lathe elbow grooving knife should be equal to the groove width a, and L should be less than 6, otherwise the elbow grooving knife cannot enter the groove.Secondly, it should be noted that when the elbow grooving tool enters the flat groove, in order to avoid the side of the turning tool colliding with the workpiece, the side should be ground into an arc shape accordingly.
  • The processing method of the dovetail groove of the turning dovetail groove must also be turned in three steps with three turning tools.

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