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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

TI TPS65266RHBR

# TPS65266RHBR TI TPS65266RHBR New Switching Voltage Regulators 2.7Vto6.5V InputV3A 2A/2A Output Cur Syn , TPS65266RHBR pictures, TPS65266RHBR price, #TPS65266RHBR supplier ------------------------------------------------------------------- Email: [email protected] https://www.slw-ele.com/tps65266rhbr.html ------------------------------------------------------------------- Manufacturer: Texas Instrument s  Product Category: Switching Voltage Regulator s  RoHS:  Details   Mounting Style: SMD/SMT  Package / Case: VQFN -32  Output Voltage: Adjustable  Output Current: 2 A, 3 A  Number of Outputs: 3 Output  Input Voltage MAX: 6.5 V  Topology: Buck  Input Voltage MIN: 2.7 V  Switching Frequency : 1 MHz  Minimum Operating Temperature: - 40 C  Maxim um Operating Temperature: + 85 C  Series: TPS65266  Packaging: Cut Tape  Packaging: MouseReel  Packaging: Reel Switching Voltage Regulators 2.7Vto6.5V InputV3A 2A/2A Output Cur Syn

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

The Theory Of Aluminum Die Casting

The Theory Of Aluminum Die Casting

The Theory Of Aluminum Die Casting

Aluminum alloy die-casting products are mainly used in electronics, automobiles, motors, home appliances and some communication industries. Some high-quality aluminum alloy thin wall die casting products with high performance, high precision and high toughness are also used in large aircraft, ships and other industries with relatively high requirements. . The main use is still on the parts of some instruments.

Casting aluminum alloy ingot production process: electrolytic aluminum liquid, waste aluminum ingot, scrap – batching – smelting tool preheating – slag removal in ladle – furnace loading – mixed smelting – furnace temperature control – slag removal and degassing – casting tool preheating ——Open the furnace hole to release molten aluminum – pouring – slag – cooling into indium – inspection – coding – packing – finished casting of aluminum alloy ingots.

Smelting operation: As described above, the pouring process is basically the same as that of ordinary casting, and the specific operations are related to the smelting of aluminum alloys and the casting of aluminum ingots for remelting.

It is mentioned in the die casting theory of aluminum die castings that continuous casting of horizontal ingot molds is the most commonly used casting method in aluminum electrolysis plants. Aluminium ingots for remelting of aluminium and aluminium alloys. A special volume die casting machine is used to realize this casting.

The horizontal continuous ingot casting method is a casting method with a high degree of mechanization of the block iron mold ingot casting method. The die casting mold technology is relatively simple. Because the aluminum alloy ingots for remelting are produced, the defects on the surface of the ingots and the requirements for the internal crystalline structure are relatively not strict. There are still requirements for pinhole grades inside the ingot. For the specific requirements of die casting ingots, please refer to the standard "Casting Aluminum Alloy Ingots"

Die Casting Process Control

The requirements for the process of horizontal continuous casting are mainly pouring temperature, pouring speed and water cooling control(The Theory Of Aluminum Die Casting).

  1. Pouring temperature The casting temperature of aluminum and aluminum alloy ingots for re-cultivation is different due to the different alloy varieties. In general, the pouring temperature of common aluminum and deformed aluminum alloys is in the range of 30-80 degrees above the crystallization temperature of the alloy. Cast aluminum alloys are in the range of 30 – 50 degrees above the crystallization temperature.
  2. Pouring speed Horizontal ingot mold continuous casting is a fixed casting machine. Different types of casting machines have different casting speeds. The casting speed is adjustable, and the casting speed is expressed by the travel speed of the mold. But to be more intuitive, foundries generally test casting speed by casting several ingots per minute. It should be emphasized that the casting speed should not be adjusted too fast, otherwise, it may cause the die casting machine to vibrate greatly, and the ingot will have serious ripples and surface oxidation.
  3. Cooling control The cooling method of the horizontal ingot mold continuous casting machine is divided into two types: one is the forced water-cooling type immersed at the bottom of the casting mold, which mainly controls the inlet water temperature to be below 40 degrees and the return water temperature to be below 60 degrees. The other is the natural cooling method of the ingot, but in order to ensure the normal operation of the casting machine, it is necessary to reduce the temperature of the casting mold, and spray cooling with water before or after the demoulding of the ingot, so as to reduce the temperature of the casting mold, that is, to avoid die casting mold cost.The equipment failure that may occur in the high temperature operation of the casting machine is also conducive to the demolding of the ingot and the stability of the process conditions. This cooling method generally requires the water spray temperature to be below 40 degrees.

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