In modern manufacturing, stainless steel has become the preferred material for manufacturing high-precision output shafts with its excellent corrosion resistance, high strength and good mechanical properties. As an advanced processing method integrating turning and milling, the turning-milling composite precision machining technology provides strong technical support for the manufacturing of stainless steel output shafts with its high efficiency, precision and flexibility. However, to ensure the high quality and performance of stainless steel output shafts, strict quality control must be implemented during the turning-milling composite precision machining process. This covers the entire process from raw material testing, processing process monitoring to finished product quality testing. Through advanced testing equipment and strict quality control processes, it is ensured that each stainless steel output shaft can meet the design requirements and adapt to the needs of various complex processes.

The quality of raw materials is directly related to the performance of the final product. Therefore, when selecting stainless steel materials, strict chemical composition analysis and mechanical property testing must be carried out.
Chemical composition analysis: Through advanced means such as spectral analysis and X-ray fluorescence analysis, the content of various elements in stainless steel materials is accurately determined to ensure that they meet the established standards. In particular, the content of major alloying elements such as chromium and nickel directly affects the corrosion resistance and mechanical properties of stainless steel.
Mechanical property test: including tensile test, impact test and hardness test, etc., to evaluate the key indicators of stainless steel materials such as tensile strength, yield strength, impact toughness and hardness. These tests help to understand the overall mechanical properties of the material and provide a scientific basis for subsequent processing and use.
Microstructure inspection: The microstructure of stainless steel materials, including grain size, morphology and distribution, is observed by metallographic microscope or electron scanning microscope to evaluate the uniformity and stability of its microstructure. This is crucial for predicting the processing performance of the material and the performance of the final product.
In the process of turning and milling composite precision machining, precise control of machining parameters and continuous monitoring of the machining process are the key to ensuring the high quality of the output shaft.
Tool selection and wear monitoring: According to the hardness and toughness of stainless steel materials, select appropriate tool materials and cutting parameters. At the same time, the tool wear monitoring system is used to monitor the wear of the tool in real time, and the tool with severe wear is replaced in time to avoid machining errors and surface quality degradation caused by tool wear.
Temperature control: Stainless steel is prone to generate heat during machining, resulting in thermal expansion and hardness changes of the material. Therefore, effective cooling measures such as coolant spraying or cutting fluid circulation are required to control the temperature of the machining area and maintain the stable performance of the material.
Processing parameter optimization: The CNC system accurately controls processing parameters such as spindle speed, feed speed and cutting depth to ensure the stability and accuracy of the processing process. At the same time, simulation software is used to simulate and optimize the processing process to reduce processing errors and improve processing efficiency.
Online detection and feedback: During the turning and milling process, online detection equipment and sensors are used to monitor the dimensional accuracy and surface quality of the workpiece in real time. Once an abnormality is found, feedback and adjustment are immediately made to ensure the stability and controllability of the processing process.

After the processing is completed, a comprehensive quality inspection of the stainless steel output shaft is a key step to ensure that it meets the design requirements.
Dimensional accuracy inspection: Using high-precision measuring tools such as three-coordinate measuring machines and vernier calipers, the key dimensions of the output shaft such as diameter, length, coaxiality, etc. are accurately measured to ensure that they meet the design requirements.
Surface quality inspection: The surface quality of the output shaft is inspected by surface roughness meters, microscopes and other equipment, including surface roughness, surface defects (such as cracks, scratches, etc.) and surface cleanliness. These inspections help evaluate the wear resistance, corrosion resistance and service life of the output shaft.
Mechanical property testing: The finished product is subjected to mechanical property tests such as tensile test and torsion test to evaluate its key indicators such as tensile strength, yield strength, torsional stiffness and fatigue life. These tests help to understand the load-bearing capacity and durability of the output shaft in actual use.
Nondestructive testing: The output shaft is tested for internal defects using nondestructive testing technologies such as ultrasonic testing and magnetic particle testing. These technologies can detect potential defects such as cracks and inclusions inside the material to ensure the overall quality and safety of the output shaft.
In order to ensure the high quality and performance of the stainless steel output shaft, it is necessary to continuously optimize and continuously improve the quality control process.
Establish a quality management system: formulate a complete quality management system and process, and clarify the responsibilities and requirements of each link. At the same time, establish a quality traceability mechanism to ensure that the processing and test results of each link can be traced back.
Strengthen employee training and skill improvement: Regularly conduct quality awareness and skill training for employees to improve their quality awareness and operating skills. Through training, employees can master the use of various testing equipment and tools and improve the accuracy and reliability of test results.
Introduce advanced technology and equipment: Actively introduce advanced testing technology and equipment at home and abroad to improve detection accuracy and efficiency. At the same time, we will strengthen cooperation and exchanges with scientific research institutions and technical experts, and continuously improve our own technical level and innovation ability.
Continuous improvement and feedback: Establish a continuous improvement mechanism to regularly evaluate and optimize the quality control process. By collecting customer feedback and market information, we can understand the performance and problems of the product during use, and timely adjust and improve the production process and quality control process.

As a key component of the mechanical transmission system, the quality and performance of the stainless steel output shaft are crucial to the stability and reliability of the entire system. The high quality and performance of the stainless steel output shaft can be ensured through the turning and milling composite precision machining technology and strict quality control process. In the future, with the continuous advancement of science and technology and changes in market demand, the processing technology and quality control process of stainless steel output shafts will continue to develop and improve. By introducing new technologies, new equipment and optimizing process flows, the quality and performance of stainless steel output shafts will be further improved to meet more complex and diverse process requirements.