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Seco Tools: Prevent Delamination In Hybrid Stacked Material Machining

Seco Tools: Prevent Delamination In Hybrid Stacked Material Machining

Seco Tools: Prevent Delamination In Hybrid Stacked Material Machining

For aerospace shops struggling with holemaking and milling operations in hybrid stacked materials, the new JC899 Hybrid Stack finisher and JC898 rougher from Seco Tools are ideal solutions. The finisher, JC899, features a patented two-in-one geometry that eliminates problems with delamination and fiber pulling out when working with stacked materials such as carbon fibre reinforced polymer (CFRP) combined with titanium/aluminum. Together with the JC898 rougher, the JC899 finisher offers three to six times more tool life over conventional drill/reamer combinations and generates pollution free holes and side walls with perfect surface finishes to deliver up to 300 percent greater process efficiency.

 

The JC898 offers an advanced frontal teeth design ideal for helical interpolation which reduces cutting forces and minimises the risk of delamination when working with hybrid stacked materials that can put lots of pressure on Z-axis drilling operations and generate chips that can damage the machined hole’s surface finish.

The patented JC899 finishing tool utilises a two-in-one geometry to eliminate chip pollution, removing the need for manufacturers to unstack and clean hybrid stacked materials after machining. The diamond-based STAX coating ensures reliable processes and high-quality products, while the double geometry’s left-hand ½ helix prevents delamination, fiber pullout and chip marks from damaging the workpiece’s surface.

As opposed to boring tools that involve time-consuming benchwork and complicated measuring for proper part repositioning, the JC898 and JC899 eliminate such post-machining work to significantly simplify CFRPtitanium and CFRP-aluminum hybrid material holemaking operations. The resulting processes are twice as fast as those performed with alternative solutions and tool life has been doubled as well.

In addition, the JC898 and JC899 offer numerous advantages for helical inerpolation and side milling applications, increasing process stability and speed at the same time they minimise the need for postmachining operations and benchwork. By reducing stress imparted to stacked materials during machining, these tools improve workpiece quality, particularly for CFRP-titanium applications that are otherwise likely to produce burrs.

The JC898 and JC899 handle lengths or stack heights ranging from 15 to 60 mm. The JC898 is available in diameters of 8 or 15 mm, while the JC899 is available in 8.5 and 14.8 mm (finisher) as well as in a 0.375″ diameter.

 

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