Search This Blog

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


# 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] ------------------------------------------------------------------- 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

Analysis of Lubricant Used in Rolling Bearings

As we all know, bearing is a pivotal component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of the mechanical load during the transmission of the equipment. Therefore, it is particularly important to choose a suitable lubricant. So, how should the rolling bearing lubricant be selected, and what are the methods?

The lubricants used in rolling bearings are divided into two types: grease and lubricating oil.

One, grease.

Grease is made by mixing lubricating oil, thickener and additives at high temperature. According to the type of thickener, grease can be divided into calcium-based grease, sodium-based grease, calcium-sodium-based grease, lithium-based grease, aluminum-based grease, and molybdenum disulfide grease.

The main performance indicators of grease are penetration, dropping point, mechanical stability, oxidation stability and corrosion resistance. The choice of grease should be based on the working conditions, temperature and load of the bearing.

Dropping point is generally used to evaluate the high-temperature performance of grease. The actual working temperature of the bearing should be 10-20℃ lower than the dripping point of the grease, and the use temperature of synthetic grease should be lower than 20-30℃. Penetration refers to the hardness or bearing capacity of the grease. Bearings that work under heavy loads should use grease with low penetration. Calcium-based grease is not easy to dissolve in water and is suitable for working environments with humid and high water content. Sodium-based grease is easily soluble in water and is suitable for dry and low-moisture working environments.

Generally, grease is often used in bearings. The advantages of lubricating grease are: high oil film strength; good grease adhesion, not easy to lose, and long use time; simple sealing, which can prevent dust, moisture and other debris from entering the bearing. The disadvantage is: when the speed is higher, the friction loss power is larger.

Insufficient or excessive grease will cause the temperature rise and wear of the bearing to increase during the operation of the bearing, so the filling amount of grease should be moderate. Generally, it is appropriate to fill 1/3 to 1/2 of the space between the bearing and the housing.

Two, lubricants.

lubricants include special mineral oil, vegetable oil and synthetic lubricants.

The performance indicators of lubricating oil include viscosity, viscosity-temperature characteristics, acid value, corrosiveness, flash point, freezing point, etc.

Viscosity: Refers to the frictional resistance of the relative movement of the lubricating oil. The viscosity directly affects the fluidity of the lubricating oil and the ability to form a lubricating oil film between the friction surfaces. Therefore, viscosity is an important basis for choosing lubricating oil.

Bearings working under high speed or high temperature conditions are generally lubricated by oil. The advantages of oil lubrication are: reliable lubrication, low friction coefficient, good cooling and cleaning effects, and a variety of lubrication methods can be used to adapt to different working conditions. The disadvantage is that it requires complicated sealing devices and oil supply equipment.

When the bearing is immersed in oil (oil valley lubrication), the height of the oil level should not exceed the center of the rolling element under *. When the speed is high, drip oil or oil mist lubrication should be used.

The 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.

Link to this article:Analysis of Lubricant Used in Rolling Bearings

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.:Cnc Machining,Thank

Contact Us

Get In Touch or Get A Quote

Need an expert? you are more than welcomed to
leave your contact info and we will be in touch shortly
Sifangyuan Industrial Park, Xinshapu, Huaide Community
Humen town, Dongguan City, Guangdong Province.