What issues need to be addressed in turning? Turning uses the rotational motion of the workpiece and the linear or curved motion of the tool on the lathe to change the shape and size of the blank and process it to meet the requirements of the drawing. Turning is one of the most widely used screw machining methods in the machine industry. There are many lathes, a wide processing range, and many fixtures are used. Therefore, the safety and processability of turning machining is particularly important.
Problems needing attention during turning
What problems should be paid attention to during the CNC turning process?
PTJ SHOP tells you the following questions:
- Chip damage and protective measures. The various steel parts processed on the lathe have good toughness. The chips produced during turning are rich in plastic rolls and the edges are sharp. When cutting steel at high speed, hot, slender chips are formed, which can easily cause injury. At the same time, it is often wrapped around workpieces, turning tools and tool holders. Therefore, in the work, it should be cleaned or broken with hooks in time, if necessary, stop rotating, but it is absolutely not allowed to clean or break by hand. In order to prevent cutting and chip breaking, the chip flow direction should be controlled and various protective baffles should be installed. The chip breaking measure is to grind the chipbreaker or step on the turning tool and use a suitable chip breaker and mechanical clamping tool.
- The workpiece is loaded. During the turning process, the machine is damaged due to improper loading of the workpiece, the tool is broken or broken, the workpiece is dropped or the machine is flying out of the machine. Therefore, in order to ensure the safe production of turning, special attention must be paid to the parts of different sizes and shapes. Whether it is a three-jaw, four-jaw chuck or a special clamping tool, the connection to the main shaft must be stable and reliable. All should choose the right clamping tool. For the workpiece, clamping, correction and clamping are required. The sleeve can be used to hold large workpieces, ensuring that the workpiece does not shift, fall off, or be thrown under the action of high-speed rotation and cutting force. Use top, center frame and other reinforcement fasteners if necessary. Remove your hand immediately after clamping.
- Safe operation. Before working, the machine should be fully inspected and confirmed to be in good condition. The fixing of the workpiece and the tool ensures that the position is correct, firm and reliable. During the process, tools, loading and unloading work and measuring work pieces must be replaced. Do not touch or wipe with a cotton thread when turning the workpiece. In order to properly select the cutting speed, feed rate and hard depth, the workload is not allowed to be overloaded. Workpieces, fixtures, etc. must not be placed on the surface of the nose, the tool holder and the bed. When using the tool, move the turning tool to a safe position with the right hand in front and the left hand in the open position to prevent the sleeves from getting caught. The machine tool should be used and maintained by a special person, and there is a maintenance registration form, which other staff members are not allowed to use.
What issues do you need to focus on for turning?
Special Note: Turning is the method of cutting a workpiece relative to a tool using a workpiece in a lathe. The cutting energy for turning is mainly provided by the workpiece rather than the tool. Turning is the most basic and most common cutting method and plays a very important role in production. Turning is suitable for turning the turning surface. Most rotary surface workpieces can be turned, such as inner and outer cylindrical surfaces, inner and outer tapered surfaces, end faces, grooves, threads, and rotary forming surfaces. The main tool used is the turning tool. Among the various metal cutting machines, lathes are the most widely used, accounting for about 50% of the total number of machine tools. The lathe can not only use the turning tool to turn the workpiece, but also drill, ream, tap and knurl using drills, reamer, taps and tools. According to the characteristics of the process, layout and structure, the lathe is divided into horizontal lathes, floor lathes, vertical lathes, turret lathes, etc., most of which are horizontal lathes.
PTJ SHOP, 12 years of CNC precision CNC machining experience, producing non-standard parts of copper, iron, aluminum and stainless steel, precision up to 0.01mm, welcome to come and see the sample to come to the field!