Entity

Time filter

Source Type

Kawasaki, Japan

Soutome T.,PILOT Corporation
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C | Year: 2012

The objective of this investigation is an invention of theory and technics on surface roughness≒O, roundness≒O, and cylindricity≒0 boring as small diameter and long length. In this paper it is analyzed that high precision boring can be achieved with combining the insensitive vibration cutting mechanism, microgroove selfcontrol mechanism on (40Hz+ 30kHz) superposition superfinishing, the main spindle system with air bearing and the carriage system with the pneumatic floating system. These mechanisms which can reduce cutting resistance are especially effective for precision boring, because in this case the rigidity of the tool shank is very low. The concrete methods are as follows: In the first process, the work which is chucked on the main spindle with air bearing is machined as acting a continuously and systematically pulsating cutting force by the ultrasonic vibration cutting mechanism. In the following process, the work is finished by the newly developed (40Hz+30kHz) superposition superfinishing device. After all, to actualize machining surface roughness of 0.1∼0.5 μ mRz, roundness of 0.1∼0.5 μ m, cylindricity of 0∼0.5 μ m/60mm, is succeeded in work material of duralmin, brass, carbon steel, stainless steel, hardend steel (HRC39, HRC52). It is found that the high precision boring can be realized by means of this new machining process and its lathe. © 2012 The Japan Society of Mechanical Engineers. Source


Soutome T.,PILOT Corporation
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C | Year: 2010

The objective of this invesitigation is to clarify a new and high efficient mirror machining process with using ultrasonic and low frequent vibrations, that has been named "superposition superfinishing (SSF process)". In the first report, it was confirmed that a stock removal rate of superposition vibration cutting as cutting process on this SSF process can be higher than that of low frequent superfinishing, and that a high efficient mirror machining can be practically achieved. In the second report, by analysis and consideration on superposition cutting track, it was found that cutting length of this superposition vibration cutting strongly influence on a stock removal amount. In this report, as one reason of obtaining a high stock removal rate, we have adopt equivalent grade characteristics of ultrasonically vibrated abrasive stone. It has be shown that the grade of abrasive stone decreases according as amplitude incleases. On the result of some experiments, it is found that this phenomenon can be controlled by an amplitude value of ultrasonic vibration, and that a rate of abrasive stone ware per one meter of superposition superfinishing is lower than that of low frequent superfinishing in the case of large maximum cross angle. Source


Trademark
Pilot LLC | Date: 2001-05-22

Newspapers for general circulation; telephone number books.


Trademark
Pilot Travel Centers Llc, Pilot Corporation and Sail Oil Corporation | Date: 1958-06-10

GASOLINE AND MOTOR OIL [ AND LUBRICANTS ].


Soutome T.,PILOT Corporation
Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C | Year: 2010

In this investigation a high efficient mirror machining process with providing above 20 kHz ultrasonic vibration and 20-50 Hz low frequent vibration to fine abrasive stone, has been created and named "Superposition superfinishing (SSF process) ". This machining process consists of the first cutting process (SVC process : superposition vibration cutting) and the second mirror machining process (SF process: superfinishing). To finally obtain a high efficient and high precision mirror surface with smoothness, more fine uneven surface roughness on first cutting process is desired, because the mirror finishing time on second process can be reduced. Until now, in several experiments it was practically observed that surface roughness by superposition vibration cutting is smaller than that by superfinishing without stone loading. In this report, some experiments have been examined to confirm this inproving effect in detail. Experimental conditions are as follows: Rotational frequency of work: 60-950min-1. Work diameter (material) : ø35mm (SKS3, HRC47), Frequency F and Amplitude A of Low frequent vibration : 0-25 Hz, 0-1 mm, Frequency f and Amplitude a of ultrasonic vibration: 0-46 kHz, 0-7.5μm, Stone Pressure P: 24.5-196 kPa, Stone: WA (600-3000) RH (20-80) V, Machining fluid : Light oil. In this paper, it is confirmed with analyzing and experiments that surface roughness by SVC process can be improved in comparison with SF process without stone loading. Source

Discover hidden collaborations