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HIGH EFFICIENCY SYNCHRONOUS COMBINATION MILLING

IP.com Disclosure Number: IPCOM000238949D
Publication Date: 2014-Sep-26
Document File: 6 page(s) / 230K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present disclosure is related to an array tool for use in Synchronous Combination Milling of material, particularly with metal materials.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 44% of the total text.

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HIGH EFFICIENCY SYNCHRONOUS COMBINATION MILLING

TECHNICAL FIELD

    The present disclosure is related to an array tool for use in Synchronous Combination Milling of material, particularly with metal materials.

BACKGROUND

    Milling processes are effective ways for mass material removal in aero-engine part manufacture. Among them, an aero-engine mount is a typical milling part on which many pockets have to be removed. Actually, because the material for engine mount belongs a kind of difficult-to-cut material, such as titanium alloy, high temperature alloy, its manufacture has quite long milling cycle time with quite high tool cost, about 90% of which is due to rough milling. For conventional milling, three parameters are typically adjusted to improve the productivity: (1) increasing cutting speed, (2) increasing feed speed, and/or (3) increasing cutting depth. In order to improve tool wear-proof and tools' life, high-price ceramic tip and cutting edges with ultra- thin coating have been utilized.

    Synchronous Combination Milling (SCM) is a kind of high efficiency milling process combining nonconventional blue arc milling technology and conventional milling technology with an array tool. The blue arc milling is a kind of high efficiency material removal method, but results in a low surface quality due to recast layer. By following conventional milling, SCM will enhance the quality by removing the recast layer. Different from conventional milling processes, the parameters utilized to improve nonconventional blue arc milling productivity include


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electrical parameters optimization, electrode materials selection and milling parameters optimization.

    Although many improvements have been achieved in traditional single tool milling, both capabilities easily reach to limitation. Apart from that, the demerits of these conventional and nonconventional methods cannot be avoided individually.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 shows a flexible array tool topological structure.

Fig. 2 shows a case of combination milling a plane surface.

Fig. 3 shows a diagram of a method of milling utilizing the tool of Fig. 1.

DETAILED DESCRIPTION

    According to the advantage of SCM demonstrated above, fabrication cost and duration can be steeply reduced synchronously by using an array tool in manufacturing engine mount. Described herein is a flexible array tool that includes a blue arc electrode in first row and milling tools in following rows, as shown in Fig. 1. The blue arc electrodes of the first row for are relatively close to each other, and positioned in a straight line. In contrast, the milling tools of the second row are spaced farther apart from each other and are staggered such that the individual milling tools are not positioned within a straight line. As such, wider spaces are present between the milling tools of the second row than the spaces between adjacent blue arc electrodes of the first row. The milling tools of the second row are a...