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Roundness measurement
Roundness Measurement
Roundness measurement is the process of measuring the perfect round or cylindrical shape of an object. It is done by measuring the radius and circumference of the object so that the exact shape can be determined. Roundness measurement is most commonly used in the engineering......
1056 
Oliver
Design and Application of Hydraulic Rotary Lifting Stage
Hydraulic Rotating and Rising Stage Design and Application
This paper mainly introduces the application and design of hydraulic rotating and rising stage (hereinafter referred to as “rotating and rising stage”) which is mainly used to support performances. By analyzing the design principle of t......
Development of 55CrSi Wire Rod for Automobile Suspension Spring
Developing the Fire Forming Process with 55CrSi Plate Bar for Automotive Suspension Spring
Abstract
The development of an effective fire forming process for producing automobile suspension spring from 55CrSi plate bar was studied. The fire forming process investigates the effects of burning force......
Advances in Near Net Shape Ring Rolling Technology for Large Titanium Alloy Rings
Progress of Ring Rolling Technology for Large-Scale Titanium Alloy Ring Shapes
Ring rolling technology has been widely applied to the production of large-scale titanium alloy ring shapes in many industries such as aerospace, nuclear and so on. It is a complex process with many technical parameter......
Turning
Turning
Turning is a machining process in which a cutting tool, typically a non-rotary tool bit, describes a helical toolpath by moving more or less linearly while the workpiece rotates. The tools axes of movement may be literally a linear axis, but they can also be combined into more complex mot......
Form rolling
Cold rolling is a steel forming process in which a metal bar is passed through a pair of rolls to reduce the thickness, increase the yield strength and increase the hardness of the metal bar. This type of metal forming process involves passing the metal bar between two rolls that rotate in opposit......
Analysis of Body Structure and Welding Technology of Large Bus
Analysis of Large Bus Body Structure and Welding Technology
Large buses as a kind of public transportation vehicle have become an important means of transportation in our daily life. It is also an important part of peoples daily lives, both in terms of passenger volume and in terms of cost saving......
Forging: Cover Dies
Introduction
Forging and stamping have a rich history of industrial metalworking, from hundreds of years ago when primitive man hammered and cut metal to shape weapons and tools to today where metal parts are formed, stamped, punched and cut into intricate parts for the automotive and aerospace in......
GB/T 9788-1988 Dimensions, shape, weight and allowable deviation of hot-rolled unequal angle steel
GB/T 9788-1988 Hot Rolled Unequal Angles: Dimensions, Shape, Mass and Permissible Deviations
This standard applies to hot rolled unequal angles for use in structural engineering.
The size tolerance for dimensions such as width (tolerance for the range of ± 0.4 to ± 5 mm) and length shall be i......
Surface quality and ultrasonic inspection of structural seamless steel pipes (GB/T 8162-1999)
Surface Quality and Ultrasonic Testing of Seamless Steel Pipe for Structural Use (GB/T 8162-1999)
Seamless steel pipe is widely used in the construction and other industries due to its good strength, corrosion resistance and high temperature resistance. To ensure the quality of high-pressure se......
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