Combined machining system and method of ultrasonic vibration assisted grinding and magnetic polishing

A technology of ultrasonic vibration and magnetic polishing, which is applied in the field of advanced manufacturing, can solve the problems of multi-component composite processing with a very small number of processing technologies

Inactive Publication Date: 2019-04-16
ROCKET FORCE UNIV OF ENG
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Problems solved by technology

At present, ultrasonic vibration-assisted grinding, laser heating-assisted grinding, EDM-assisted grinding and other processing methods that combine two processing technologies are the main methods, and few studies consider the multiple processing technologies. Composite processing

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  • Combined machining system and method of ultrasonic vibration assisted grinding and magnetic polishing
  • Combined machining system and method of ultrasonic vibration assisted grinding and magnetic polishing
  • Combined machining system and method of ultrasonic vibration assisted grinding and magnetic polishing

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described in detail below through specific embodiments and accompanying drawings.

[0023] Now take the transformation of the vertical-axis rectangular table precision surface grinder into a composite processing system of ultrasonic vibration-assisted grinding and magnetic polishing to realize efficient and precise processing of silicon carbide ceramics as an example. It includes the following steps:

[0024] Step 1: Based on the vertical axis rectangular platform precision surface grinder, establish the ultrasonic vibration assisted grinding-magnetic polishing composite processing system, as shown in the attached figure 1 shown. The ultrasonic vibration generating device 1 and the electromagnetic field generating device 2 are installed on the main shaft where the diamond grinding wheel 3 is fixed, the first controller 5 can adjust the ultrasonic vibration frequency, and the second controller 6 can adjust ...

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Abstract

The invention relates to a combined machining system and method of ultrasonic vibration assisted grinding and magnetic polishing. Ultrasonic vibration enables a diamond grinding wheel or workpiece toperform forced reciprocating vibration to enable suspended abrasive particles in working fluid to erode a machined surface and sharpen the surface of the grinding wheel. When the grinding wheel is outof the contact with the workpiece due to vibration and magnetorheological fluid flows through a gap between the grinding wheel and the workpiece, a magnetorheological effect occurs due to being subjected to the action of magnetic field force, an ''elastic polishing film'' is formed by rapid solidification, and hard abrasive particles contained in the magnetic fluid are evenly distributed on the surface of the ''elastic polishing film'', so that finishing process of the workpiece and sharpening of the grinding wheel are achieved. When regaining to be in contact with the workpiece due to vibration, the grinding wheel is directly involved in grinding the surface of the workpiece, and the forced reciprocating vibration of the grinding wheel enables frequent pulse cutting action to exist between the grinding wheel and the workpiece. According to the combined machining system and method of ultrasonic vibration assisted grinding and magnetic polishing, three technologies including ultrasonicmachining, grinding machining and magneto-fluid polishing are multi-combined, automatic on-line sharpening of the grinding wheel is realized, and high material removal rate and low damage surface quality are obtained.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology, and in particular relates to a composite processing system and method of ultrasonic vibration-assisted grinding and magnetic polishing. Background technique [0002] The processing methods of difficult-to-machine materials such as engineering ceramics and optical glass can be divided into three categories: mechanical processing, special processing, and energy-assisted processing. At present, difficult-to-machine materials are mainly processed by grinding, which gradually develops into high-speed / ultra-high-speed grinding, deep-cut slow-feed grinding, high-efficiency grinding, online dressing grinding and other types, with mature technology and high processing efficiency. High-level advantages, but there are disadvantages such as large surface damage and high cost. In addition, mechanical processing methods such as turning and milling are limited to experimental research on proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B1/04
CPCB24B1/005B24B1/04
Inventor 王龙李平陈小虎阳能军唐修检李若亭田欣利
Owner ROCKET FORCE UNIV OF ENG
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