Milling of high productivity

The mechanised of high productivity (MAP) is a type of mechanised vanguardista in which all optimises for maximizar the production and finalise all the operations with the greater rapidity. However, if this production does not combine with precision and reliability, will not obtain the result wished. It treats of a difficult balance to reach and, thus, the manufacturers of high volumes of extraction equipment equipment of shaving need to have a reliable partner of tools.

Usually, the companies that centre in the mechanised like main activity are used to to apply the MAP in surroundings of active production the 24 hours of the day. As it affirms Ruud Zanders, responsible of products Jabro, “often, treats of providers of the sector of the car or aeronautical sector component manufacturing sector component manufacturing, some competitive markets in which they do not have fit the delays in the deliveries”.

Dry has incorporated recently to his range HPM two new milling cutters enterizas of hard metal: JHP951 and JHP993 for steel and smelting. Both can employ in applications of desbaste like the ranurado with width 100% with depths of cut of until 1,5xDc (or, in some cases, upper) or in applications of contorneado in finishing. Besides, the strawberry JHP770 for titanium offers a wider election of operations.

Although the tools of the range Jabro-HPM are designed specifically for his respective ends, all they have some appearances in common. The most important is with regard to the extraction equipment equipment of volume of shaving (MRR) notably upper that the one of the milling cutters enterizas of hard metal of general use; in occasions, more than the double (see the chart). Another of the similarities is his capacity to delete the vibrations with the end to improve the precision and the reliability. A third appearance is the wear controlled of the flank with a minimum risk of astillamiento or break, what allows reafilar these tools until twice in function of the type and of the application.

“This provides us a big saving, since the cost of the reafilado supposes around a third of the total of a new tool”, declares Teun go Asten, Services of marketing in Dry Jabro.

The strawberry JHP951 is designed for the escuadrado in desbaste and finishing of steel and foundries in stable conditions. His depth of maximum cutting is of 1,5xDc, although in some applications can apply until 2xDc. With the proportionate data in the catalogue of Novelties 2013-1, the strawberry JHP951 also can apply in operations of last generation, like the helicoidal interpolation and the rampeado with an angle of 10 degrees.

In words of go Asten, “treats of an exceptional advantage, especially when they have to mechanise numerous cajeados. In comparison with the previous version (JHP950), with an angle of rampeado of 5º, will be able to reach the depth of mechanised necessary almost the double of fast”.

Another of the main advantages where the strawberry JHP951 surpasses to his ancestor is the MRR maximum, that has increased in a 30–50% in function of the application. Another possibility is to keep the data of original cutting and use the increase of the performance to obtain a greater useful life of the tool.

Between his characteristics of design of the strawberry JHP951 has in passing differential and a propeller with different angles, that delete the risk of vibrations caused by the resonance inside the assembling piece-tool. To this contributes also an angle of radial incidence of eight degrees beside an angle of inclination of five degrees that allows the effective learning of shaving. The special design of the pipes of evacuation of shaving with a big diameter of the core provides a reliable evacuation of shaving as well as some edges of robust cut.

“The combination of all these factors is what provides this performance”, affirms Zanders. "In addition to centring us in the geometry, beside our key providers commission us to select the suitable combination of the coating and hard metal”.

The geometry of the JHP951 has of an additional tooth in upper diameters to the 16 mm, what adds a total of five and increases the productivity in 25% or allows to expand the useful life of the tool.

The strawberry JHP993 is designed for applications of desbaste complex in steel and smelting, especially when the piece is not entirely solid or results difficult to fix. The profile of desbaste reduces the strengths in the zone of cut, what turns it into the suitable strawberry when the power of the husillo is limited or the fixation is not stable.

Thanks to the slots on the edge of cutting and to the design of the edges of cut, the shavings are short and easy to evacuate. And finally, it has of inner refrigeration with conical entrance that optimises the flow, what allows that it arrive to the edge of cutting 30% more than refrigerante in comparison with the milling cutters enterizas of hard metal that do not have this system.

As it affirms Zanders, “these characteristics delete the risk of vibration or break, what turns it into the ideal tool for the applications of desbaste that pose a challenge in factories that work the 24 hours of the day and, in occasions, without supervision. It treats , definitely, of an extraordinarily reliable tool”.

Finally, the strawberry JHP770 employs in applications of escuadrado and ranurado in alloys of titanium, although his edge of straight cut allows his use also for finishing. It resembles the strawberry JHP951, but without the propeller with different angles and with the same pipe of inner refrigeration that the JHP993. It is available with standard radios for the aeronautical sector component manufacturing sector component manufacturing sector and, as last contribution, finds a rank in inches to satisfy the demand of the American market. To the equal that the JHP951, the strawberry JHP770 can ranurar until a depth of 1,6xDc, what can expand , in some cases, until 2xDc when it applies the inner refrigeration.

The range of milling cutters enterizas of hard metal Jabro-HPM of Dry for strategies of mechanised of high productivity is expanding . The strawberry JHP951 is adapted for stable conditions and is available in diameters from 3 to 25 mm and with three to five teeth. The strawberry JHP993 is designed for the applications of desbaste complex and supplies in diameters from 4 to 25 mm with three to six teeth and inner refrigeration. The strawberry JHP770 is allocated to the alloys of titanium and now is available also in inches. The tools JHP constitute a complement for the range Jabro-Solid2 and employ in a wide fan of applications.