A new in-feed centerless grinding technique using a surface grinder

Xu, Weixing; Wu, Yongbo

doi:10.1016/j.jmatprotec.2010.09.009

Cited by 20 publications

(12 citation statements)

References 22 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To obtain elliptic vibrations in a flexible range, the cylindrical body should be supported at the nodal points of its bending vibration modes. In addition, preloads on the free end can balance the cutting force and improve the stiffness of the vibrator during cutting [13,58,59]. Figure 3b illustrates a schematic of a typical EVA cutting system [39,41] where some PZT rings are stacked orthogonally into a metal beam under a preload, and a tool is set at the end of the device.…”

Section: Design Of Uva Cutting Systemsmentioning

confidence: 99%

Ultrasonic vibration-assisted machining: principle, design and application

Zhang

2015

Adv. Manuf.

141

View full text Add to dashboard Cite

Ultrasonic vibration-assisted (UVA) machining is a process which makes use of a micro-scale high frequency vibration applied to a cutting tool to improve the material removal effectiveness. Its principle is to make the tool-workpiece interaction a microscopically non-monotonic process to facilitate chip separation and to reduce machining forces. It can also reduce the deformation zone in a workpiece under machining, thereby improving the surface integrity of a component machined. There are several types of UVA machining processes, differentiated by the directions of the vibrations introduced relative to the cutting direction. Applications of UVA machining to a wide range of workpiece materials have shown that the process can considerably improve machining performance. This paper aims to provide a comprehensive discussion and review about some key aspects of UVA machining such as cutting kinematics and dynamics, effect of workpiece materials and wear of cutting tools, involving a wide range of workpiece materials including metal alloys, ceramics, amorphous and composite materials. Some aspects for further investigation are also outlined at the end.

show abstract

Section: Design Of Uva Cutting Systemsmentioning

confidence: 99%

Ultrasonic vibration-assisted machining: principle, design and application

Zhang

2015

Adv. Manuf.

141

View full text Add to dashboard Cite

show abstract

“…Further, Wu and Xu (2010) proposed a practical method for increasing material removal rate while workpiece final roundness is maintained at a high level in the tangential-feed type. For the in-feed type, Xu and Wu (2011) experimentally confirmed its performance and proposed a simulation method to predict the workpiece rounding process. The obtained simulation and experimental results showed that when eccentric angle is 6 • , higher machining accuracy can be obtained under a lower grinding wheel feed rate, larger stock removal and faster workpiece rotational speed.…”

Section: Introductionmentioning

confidence: 85%

A new through-feed centerless grinding technique using a surface grinder

2011

Journal of Materials Processing Technology

Self Cite

View full text Add to dashboard Cite

“…This technique is based on the concept of the ultrasonic vibration-assisted centreless grinding of cylindrical components [16][17][18][19]. Two kinds of ultrasonic vibrations are applied to the ball, and by adjusting the directions of the vibrations, the ball can be controlled to rotate in two directions to achieve a full spherical surface grinding [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…Once the required stock removal has been attained, the wheel feeding will stop followed by a dwell to allow "spark-out". During grinding, the ball's rotation around z-axis is controlled by the elliptic vibration from ultrasonic shoe, which is a typical centreless grinding operation for high precision roundness forming [16][17][18][19]. With an additional well-controlled rotational motion around x-axis by ultrasonic regulator, the whole surface of the ball can be well ground to generate a spherical shape.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sphere forming mechanisms in vibration-assisted ball centreless grinding

Cui

2016

International Journal of Machine Tools and Manufacture

View full text Add to dashboard Cite

This paper aims to clarify the sphere forming mechanisms in vibration-assisted ball centreless grinding, a new technique for effectively processing balls using ultrasonic vibrations. Based on a comprehensive analysis of the ball rotation motion, geometrical arrangement and stiffness of the whole grinding system, a reliable mechanics model was successfully developed for predicting the sphere forming process. Relevant experiments conducted showed that the model had captured the mechanics and the major sphere forming mechanisms in ball centreless grinding. It was found that the ball whole surface can be well ground with a high accuracy, while efficiency is much enhanced compared with that in the traditional methods.The ball rotational speed which is controlled by the ultrasonic regulator has a great impact on final sphericity, and the speed controlled by the ultrasonic shoe dominates the whole processing time. To achieve a stable and high precision grinding, the ball needs to rotate rhythmically, and the wheel feed per step and the ball location angle should be controlled in a critical range.

show abstract

A new in-feed centerless grinding technique using a surface grinder

Cited by 20 publications

References 22 publications

Ultrasonic vibration-assisted machining: principle, design and application

Ultrasonic vibration-assisted machining: principle, design and application

A new through-feed centerless grinding technique using a surface grinder

Sphere forming mechanisms in vibration-assisted ball centreless grinding

Contact Info

Product

Resources

About