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Technology article

How to properly select the composite processing drills

Author:ZHIDAHARDWARE Comefrom: Date:2012-11-24 00:08:20 Hits:0 Comment:0

 

Be machined piece of composite material, with standard cutting metal drill bit or cutter, the tool will soon wear caused by poor processing. It is very important to choose the right tool. Selecting the right tool must be simple to understand performance characteristics under various tool.

PCD Serf tool

Characteristics: The design of this tool can be reduced the influence of the cutting force generated by the guide blade, to improve the shearing action of the fibers. 1.2mm serrated cutter tool subtle cutter can greatly increase the processing finish.

The carbide carbon graphite machining tool

Features: multiple upper and lower cutter slot change row quiet performance and chips flow improved manual feed updates fast and smooth processing, more cutting edge, so that processing operations to higher feed rate. Mainly as a deburring tool machining a variety of composite materials.

Carbide Un-Ruffer Cutting Tool

Features: deburring compression tool. Cutting parameters: processing Politen ring of glass / polyester plate, workpiece thickness 4.76mm, spindle speed: 16000 r / min cutting speed: 2540 mm / min, machining Haysite H775, workpiece thickness 9.53mm, spindle speed: 18000 r / min, cutting speed: 2540 mm / min.

Carbide to hair bayonet

Features: the chip load 0.1 - 0.15mm spindle speed 12,000-16,000 r / min, end mill tip or drill tip geometry, high-strength diamond coating can extend about 4 - 5 times to use life is the best choice for manual engraving and milling processing.

Taper End Mills

Characteristics: omitted retraction processing using conventional drill and reamer, tool change tool translocation, significantly shorten the processing time and improve efficiency. Suitable for machining aluminum, composite materials or aluminum composite material, the tolerances are typically less than 0.038mm.

The double-edged with guide Step Drills

Features: multi-used as a secondary processing step drilling tool, suitable for high-precision drilling tolerances are typically less than 0.076mm.

Composite Drill Reamers

Characteristics: using two different cutting edges, a method for reaming, a method for drilling, guide cone to the cutting load can be transferred to a longer cutting surface, so that the reaming processing easier, by reducing the the chisel edge thickness to reduce the cutting force of the tool needed to drill into the workpiece material. Usually used for manual processing of single-layer composite board, epoxy / graphite and carbon fiber composites, once the operation has completed drilling and reaming.

Shen hole machining drill PCB drills

Features: automatic riveting machine drilled and countersunk hole machining by one operation to complete the drilling of rivet holes and countersink hole machining tolerances size of 0.076mm.

Nanocrystalline materials film diamond drill

Characteristics: large helix angle design allows the rake angle increases, very suitable for the machining of composite materials and aluminum, the parabola easy BTA design can better accommodate and emit large amounts of chips, the second point angle up self-positioning reaming role to contend with the drill suffered lateral pressure and guide the chips away from the bore wall, the unique characteristics of the carve point count can reduce the force of the drill and the formation of additional cutting edge to reduce drilling torque. More suitable for the drilling highly abrasive materials such as epoxy / graphite and carbon fiber materials and can be used as a low cost alternative to the PCD drill tip drill tool.

PCD octahedral diamond tip drill bits

Characteristics: the drill tip has a good chip breaking performance, the main cutting edge and the secondary cutting edge may produce an inclined forming ribbon chips more easily broken, and can prevent damage to the carbon fiber reinforced plastic work hole wall. Polished octahedral diamond tip can improve drilling accuracy, because the second point angle self-positioning can play the role of reaming to contend with the drill suffered lateral pressure.

The overall carbide octahedral drill

Classic octahedral drill tip by 90 ° and 118 ° of the two drill apex composition, the composition of each drill vertex from the main cutting surface and the secondary cutting surface of the two cutting surfaces. Basic cutting parameters: feed rate of 0.025-0.075mm / r, the spindle speed 3,500-5,000 r / min.

 

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