Workpiece Feed Speed Research Articles

Experimental Study on Reciprocating Electroplated Diamond Wire Saws Cutting SiC Wafer

The experiment that WXD170-type reciprocating rotating diamond wire saw cuts SiC wafer was studied using orthogonal test method in this paper. The influence of cutting speed of diamond wire saw, work-piece feed speed and rotating speed of work-piece on cutting process were analyzed. The optimized cutting parameters which can improve surface quality of slices and reduce tangential force were obtained. The results show that: the surface quality of slices which was cloud-shaped can be improved significantly due to the increase of the work-piece rotation. The work-piece feed speed and the rotation speed have greater impact on the tangential force than the saw wire speed; the work-piece feed speed and the work-piece rotation speed have greater impact on surface roughness than the saw wire speed. An important way to be obtained the smaller tangential force and better surface quality of slices is considering of a reasonable match among cutting speed of diamond wire saw, work-piece feed speed and rotating speed of work-piece comprehensively.

Experimental Research on Cutting of Silicon with Fixed Diamond Wire Saw

The experimental research on silicon was reported in this paper. The surface roughness under the different workpiece feed speed and linear velocity of the wire saws is studied mainly in this experiment. The effects of the workpiece feed Vs and the linear velocity of the wire saws Vw were analyzed.

Finishing Advanced Surface of Magnesium Alloy Tube Based on Abrasive Belt Grinding Techology

A new maching method of pretreatment magnesium alloy surface was design based on abrasive belt grinding technology, which offered a kind of technology for magnesium alloy tube surface machining. Experimental results indicated that abrasive grain granularity, belt speed and workpiece feed speed play an important role in grinding for magnesium alloy tube surface, which made magnesium alloy tube surface roughness from 0.22 um to 2.93 um with 400 grade to 80 grade on abrasive grain granularity of belt, raise the belt speed to reduce surface roughness, but raise workpiece feed speed to deteriorate roughness.

Circular saw lateral stability by optimization of feed speed

This article presents a feed speed optimization method for the circular saw lateral stability in wood cutting. The saw blade lateral deflection was monitored and the workpiece feed speed controled. An eddy current sensor was used to measure the saw deflection. Results showed that it was possible to keep the saw blade lateral deflection within a desired limit. This method may represent a promising technique in high speed cutting during the optimization process.

High-speed circular sawing using temporary tensioning

Workpiece feed speed can be increased while maintaining product dimension accuracy by proportionately increasing saw rotation speed. However, the required saw speed increase is acceptable only if the speed does not approach the saw critical speed. Tensioning can be used to increase critical speed, but the amount of tensioning possible is limited by saw “dishing.” This dishing makes saw leveling very difficult. This study demonstrates the concept of using temporary tensioning to overcome the dishing limitation. Normally, the saw is only moderately tensioned. However, after installation in the sawing machine, the tensioning can be increased temporarily, here by thermal means. In this way, the saw is highly tensioned while in operation, but only lightly tensioned during maintenance. The preliminary experiments presented in this study demonstrate this concept, and confirm that a workpiece feed speed increase of more than 50% is possible by using temporary tensioning.