Ultrasonic vibration can be applied for grinding of difficult to cut materials, such as titanium, ceramics, etc., because the ultrasonic vibration in longitudinal direction can cause reduction of cutting temperature and tool wear. In this paper, a ultrasonic tool horn, which can vibrate longitudinally with a frequency of 20kHz, was designed using finite element method …

Ultrasonic machining is a subtractive manufacturing process that removes material from the surface of a part through high frequency, low amplitude vibrations of a tool against the material surface in the presence of fine abrasive particles. The tool travels vertically or orthogonal to the surface of the part at amplitudes of 0.05 to 0.125 mm (0.002 to 0.005 in.).

Ultrasonic vibration can be applied for grinding of difficult to cut materials, such as titanium, ceramics, etc., because the ultrasonic vibration in longitudinal direction can cause reduction of...

Ultrasonic vibration assisted through-feed Centerless Grinding using surface grinder

Jiang presented ultrasonic vibration assisted grinding (UAG) is one of the impactful machining methods for processing hard and brittle materials [ 4 ].Sun introduced that ultrasonic energy intervention can reduce cutting force, improve material removal rate and machining quality [ 5 ].

US3123951A US3123951DA US3123951A US 3123951 A US3123951 A US 3123951A US 3123951D A US3123951D A US 3123951DA US 3123951 A US3123951 A US 3123951A Authority US United States Prior art keywords cleaning wheel grinding fluid shoe Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

The advantages of small volume, feel is good, low vibration, low noise, and the advantages of speed and torque. It can use different jig for grinding operation, can clamping file or the grinding tools, such as the grooves in the mold or hardware products, R …

Because of the changes in cutting conditions and ultrasonic vibration status, the proportion of multiple material removal modes are of uncertainty and complexity in ultrasonic vibration-assisted grinding of optical glass. Knowledge of the effect of machined surface composition is the basis for better understanding the influence mechanisms of surface …

ultrasonic vibration–assisted electrolytic in-process dressing (UAED) grinding, has been developed through the theories and practices of ELID grinding technology and ultrasonic vibration grinding technology. Under the function of pulse power, the metal substrate on the grinding wheel surface is removed by an anodic solubi-lity effect.

lated grinding wheel was used. To evaluate ultrasonic vibration effect, grinding test was performed with and without ultrasonic vibration in same machining condition. In ultrasonic mode, ultrasonic vibration of 20 kHz was generated by HSK 63 ultrasonic actuator. On the other hand, grinding forces were measured by KISTLER dynamometer.

Ultrasonic vibration assisted grinding (UVAG) is an effective method for edge trimming to improve the mechanical integrity of carbon fiber reinforced polymer (CFRP). However, due to the high heat resistance, abrasiveness and powdery chip of CFRP, serious tool clogging, rapid tool wear and poor surface are still considerable problems to the industry. In this paper, …

In ultrasonic vibration assisted grinding (UAG) along the axial direction, the machining process of an abrasive grit is introduced in this paper. During the internal UAG, the critical speed is ...

Grinding experiments on surface quality of nanoZrO2 ceramic are carried out using diamond grinding in different condition, both with and without ultrasonic vibration. Experimental results show the surface quality after two-dimensional ultrasonic assisted grinding is superior to that after common grinding.

force in the process of laser heating-assisted ultrasonic vibration dressing of CBN grinding wheels with different dressing process parameters, suchas laser powerP, dres-sing depth a d, feed rate f d, and grinding wheel speed V s. Figure 2: Device of laser-ultrasonic composite dressing of CBN grinding wheel.

Experimental results showed that the critical ductility grinding depth of the nano-ZrO2 ceramics is up to 12 µm in common grinding methods, while in ultrasonic grinding is up to 20µm. The grinding chips with and without ultrasonic vibration assistance were discussed.

Ultrasonic vibration assisted grinding (UVAG), as a novel effective machining process for hard and brittle materials, is introduced into directly machining sintered dental zirconia ceramics.

A computer numerical control machine tool for grinding two sides of a plane by shifting self-rotation ultrasonic vibration, wherein a pillar ( 3 ) is provided on the tool body ( 1 ) of the machine tool, a Y axis movement assembly ( 12 ) is provided on the platform of the tool body ( 1 ), with a lower revolving movement assembly ( 11 ), which revolves about a Z coordinate axis, …

This item: Pneumatic Grinder Ultrasonic Vibration Grinding Polishing Machine Reciprocating File Air Grinder 1/8 Inch with 12Pcs Ultrasonic Diamond Flat File Set $52.99 Only 5 left in stock - order soon.

Ultrasonic vibration assisted tangential-feed Centerless Grinding using surface grinder.

Because of the hard-brittle character of ceramics, the ultrasonic vibration grinding method was used in the experiment. And the effects of ultrasonic vibration on the subsurface damage were analyzed in this paper. The experiment indicates that the frequency of 35 KHz will be more suitable for ultrasonic grinding ceramics, and under this frequency the damage layer …

Ultrasonic vibration can be applied for grinding of difficult to cut materials, such as titanium, ceramics, etc., because the ultrasonic vibration in longitudinal direction can cause reduction of ...

Cemented carbide has huge applications in industrial production, but its high mechanical properties also increase the difficulty of processing. In this work, ultrasonic vibration-assisted grinding technology is used for the precision manufacturing of cemented carbide. The influence of the dynamic trajectory of the grains on the material removal process is analyzed.

Therefore, with 7.6 μm ultrasonic vibration amplitude, for the UVAG of Ti-6Al-4V, a p should be 0.1 mm, v w should be 100 mm/min, and v s should be 30 m/s. Under this condition, the effect of ultrasonic vibration assistance on grinding force is obvious. The grinding force of UVAG is about 35 % less than that of CG.

The design of a novel ultrasonic vibration apparatus and the experimental investigation of ultrasonic vibration assisted grinding of SiC micro-structures are presented. The experimental results show that the application of ultrasonic vibration can enhance the ground surface quality and improve the edge features of micro-structures.

The UEVC principle Table 1 shows the UEVC test conditions where the range of work- piece cutting speeds was set below the maximum tool vibration In the UEVC method, the tool tip is vibrated elliptically by means speed so that the separating type vibration cutting is maintained. of an ultrasonic elliptical vibrator (Shamoto et al., 2002; Suzuki ...

An ultrasonic vibration composite grinding tool is disclosed wherein a plurality of small-sized grinding wheels are arranged for carrying out grinding of a ground material while applying vibration to the ground material, to thereby ensure stable operation of the grinding tool to accomplish efficient grinding of the ground material even when the ground material is large …

Ultrasonic vibration-assisted grinding (UVAG) as a newly-developed complex machining technology, exhibiting grinding and ultrasonic vibrating characteristics [ [8], [9], [10] ], has been widely used to machine difficult-to-cut materials, such as nickel-based superalloy [ 11, 12 ], titanium alloy [ 13 ], and composite materials [ 14 ].

Ultrasonic-vibration-assisted grinding (UVAG) or rotary ultrasonic machining has been investigated both experimentally and theoretically. Effects of input variables on output variables in UVAG of brittle materials and titanium (Ti) have been studied experimentally. Models to predict the material removal rate in UVAG of brittle materials have ...

Strengthening the wheel ultrasonic vibration decreased the specific grinding energy, demonstrating that the ultrasonic vibration benefits the reduction in the energy consumption. (2) The ultrasonic vibration contributed to the work-surface finish improvement; the larger the A p-p was, the work-surface roughness became better.

Subsurface cracks in ultrasonic-vibration-assisted grinding (UVAG) of optical glasses often exhibit diverse forms and proportions. Due to the variety of loads involved in crack formation and ...