A composite cutter, the types, characteristics and the suitable scope

Composite cutter is two or over two similar or different kinds of hole machining tool into one of the public, can in a tool in the course of processing, complete drilling, reaming, economic, and bore hole in different processes of such composite process, high efficiency, high precision, high reliability, forming characteristics. Composite cutter structure style: part, fabricated, can turn a type, modular, Combination types: composite drilling, reaming, composite, complex compound boring, composite economic, Drilling, enlarge the economic expansion, the drill chamfering, boring, reaming, enlarge the economic expansion joints and expansion, boring, reaming, enlarge the economic drilling, reaming etc. &boring reaming

Composite cutter has the following traits:

1) can reduce the number of workpiece installation or fixture in order to decrease the number of bits and reduce the positioning error,

2) can simultaneously or order processing, reduce the motor and the surface of a few auxiliary time, increase productivity,

3) can guarantee machining surface of mutual position precision, processing high quality.

4) reduce the complexity of machine tools, demand, reduce cost, reduce manufacturing cost saving,

Composite tools in combination machine tools, automatic line and special machine is widely applied for the automobile, motorcycle, engine, agricultural machinery parts, body diesel engine.

Second, the innovation and development of composite cutter

With rapid industrial machinery, mechanical processing difficulty bigger, more and more high machining accuracy supplications, automatic line on the composite cutter, both must meet established takt time, and has high reliability and life, to adapt to the needs of the development of the traditional, modern compound tool suspended innovation, will need to set a new technology, new material used to enhance the use function of compound machining tool.

1 ultra precision mirror grinding technology application in composite cutter

The quality of the composite cutter knife before and after, the surface of workpiece machining precision is precision and surface machining precision and consistency of main elements. Before and after the blade and reduce the knife blade surface, improving the precision and surface quality, the knife, to add scraps and blade surface friction and cementation, the compound could finish grinding machining instead. Using ultra precision mirror surface grinding technology, which can generate microscrews blade disposal problem, make the serrated blade quality of the composite cutter, mirror surface roughness of workpiece machining Ra0.05 can reach speeds of 0.2 IT5 level machining precision m.

2 new materials in the application of composite cutter

Conservative composite cutter generally USES the tool materials for ordinary HSS and carbide, and new composite cutter with titanium carbide (metal) high-performance ceramic HSS (including Co HSS, powder, including high Al HSS) composite ceramic, CBN, new materials, etc. Of PCD cutting composite materials, the implementation of high-performance HSS and combination of cemented carbide, general HSS and titanium carbide combination, high-performance HSS and CBN knives, cemented carbides and PCD knives, cemented carbides and ceramic blades, can make the composite tools in shape, complete consistent speed drilling, reaming, boring holes, economic, the reliability of the process of different request, as we have for some enterprises in tianjin, design and manufacture of high performance of composite materials, the drill reaming cutter knives for the ordinary high price of 5 times, but its use function than ordinary HSS tools increased 10 times above, although a single tool progress but its performance of interest than advantages.