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Metal Charpy (U-notch) impact test method GB229-84
Metal Charpy (U-notched) Impact Test Method
The Charpy impact test, also known as the Charpy V-notch test, is a type of fracture testing methodology. It is used to determine impact fracture strength of particular metals. The Charpy U-notch test method, as specified in GB229–84, is intended to pr......
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Stainless steel wire for spring (YB/T11-1983)
Introduction
The use of steel wire for springs is a common practice that aids various industries. Stainless steel wire is also commonly used for springs due to its superior corrosion resistance, enabling it to serve in various harsh environments and environment-induced applications. Stainless ste......
Constant elastic alloy 3J53Y wire for watch hairspring (YB/T5262-1993)
INTRODUCTION
Precision springs are an essential element in watchmaking and clockmaking, where accuracy is essential. One such type of spring used in mechanical watches and clocks is the 3J53Y balance spring, also known as mainspring, balance wheel or hairspring. Balance springs are used to contro......
Mechanical Design Terminology (4)
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1.CAD（Computer-Aided Design）: CAD is a form of computer assisted design which enables engineers, architects, and other professionals to design and produce projects with a computer. CAD includes powerful tools for generating three-dimensional models, two-dimensional drawings, and simulations.
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Comparison table of Chinese and Japanese terms for defective plastic injection molding
Plastic Injection Molding Defects and Solutions
Plastic injection molding is a highly efficient and cost-effective way to manufacture a variety of plastic parts and components. The process involves injecting molten plastic into a mold, where it solidifies into the specified shape and design. Howe......
Vibration method
The damped harmonic oscillator
The damped harmonic oscillator is a classic example of a physical system that experiences the phenomenon of energy damping. By definition, a damped harmonic oscillator is a system in which energy is removed from the system at a rate proportional to the velocity of th......
Grinding principle
Grinding is a material removal and surface generation process used to shape and finish components made of metals and other materials. The precision and surface finish obtained through grinding can be up to ten times better than with either turning or milling. Grinding employs an abrasive product, ......
Bearing failure analysis method
，紧密围绕轴承失效分析方法
Introduction
Bearings are a common component in mechanical machinery, and they are susceptible to failure due to inadequate material or design and operations. The failure of bearings can lead to dramatic results, therefore it is extremely important to analyse and antici......
Bearing fault identification method
Fault Diagnosis of Electrical Bearing Based on Multi-Model Approach
Abstract
Electrical bearings are widely used in manufacturing industries and have become an important part of the mechanism. However, due to the complexity of its structure and the fact that its internal state is difficult to ......
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