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What errors may occur during CNC machining and CNC machining​?

 CNC machining and numerical control machining are a method to control the movement of machine tools and the production process of machining through computer digitization and information digitization. It is an intelligent numerical control device developed as an economical, high-speed, reliable, multi-functional, intelligent, and open structure. CNC machining is also an important indicator that can measure the continuous level and comprehensive ability of a safety technology, as well as the degree of modernization of related science and technology capabilities, especially in aviation, biology, medical and other high-tech cultural industries, and it is also a powerful indicator. reflect. So, what errors may occur during CNC machining and CNC machining? Let us understand together:   The use of approximate machining motion or approximate tool contours causes errors in the CNC principle of machining. The reason why it is called machining principle error is because of the error in machining


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What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th

Establish a mathematical model of the automobile air-conditioning system

The heat exchanger model library uses this model library, and the user enters the parameters (including the use code of the heat exchanger, the type of the heat exchanger, the structural parameters of the heat exchanger, the material parameters, and the evaporator under the prompts of the software interface of the heat exchanger. After the inlet air volume or the front wind speed of the condenser, the dry and wet bulb temperature of the inlet air, the type of refrigerant, the flow rate of the refrigerant, and the temperature and pressure of the refrigerant at the inlet), calculate the heat exchanger in a given working condition Performance (including the heat transfer of the condenser, the cooling capacity of the evaporator, the pressure drop on the air side and the inside of the tube, and the temperature and pressure of the refrigerant at the outlet); the model library can also calculate the heat exchanger structure separately Changes in parameters, changes in the wind speed or volume of the air at the inlet of the heat exchanger, and changes in the performance of the heat exchanger when the temperature of the air at the inlet of the heat exchanger changes are reflected in the form of a curve. The model library can be used to calculate the relationship curve between the opening and flow of various types of H-type expansion valves and externally balanced expansion valves, providing a reference for users to select expansion valves reasonably.

Liquid storage tank model library Calling this model library can calculate the volume and flow resistance of various types of liquid storage tanks. Provide a reference basis for users to reasonably select liquid storage tanks. The air conditioning system model library reasonably selects the automobile air conditioning refrigeration system based on the heat load value calculated by the heat load model library, the allowable installation space location of the car, and the existing component products, and then establishes the mathematical model of the automobile air conditioning system. The following functions can be realized by using this model library: simulation simulation calculation of simulation bench test; calculation of multiple operation modes can be carried out. It can calculate the known refrigerant charge or the required refrigeration capacity; calculation of multiple connection methods; for a given automobile air-conditioning refrigeration system, the compressor speed, the condenser inlet air temperature or the oncoming Under the conditions of wind speed, variable evaporator inlet air temperature or air volume, the performance of the automobile air-conditioning refrigeration system (such as cooling capacity, power consumption, coefficient of performance, evaporator outlet air temperature, compression ratio, compressor suction temperature and The influence law of pressure, exhaust temperature and pressure) is expressed in the form of curves, so as to provide a reference basis for predicting the matching rationality and working conditions of the automobile air conditioning system. For automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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