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CoroDrill 881 optimiza el taladrado de agujeros pequeñosTaladrado Safe of holes of small diameters in unstable conditions
CoroDrill 881 optimises the taladrado of small holes
Editorial Interempresas13/07/2012
In conditions of cutting desfavorables (as when it exists misalignment of the turret milling machines), the taladrado of holes underneath of the 24 mm of diameter can result difficult because of the fault of hygiene of the process, a factor that often carries to a finishing of the interior of the hole of bad quality or to holes out of tolerance. However, the specialist in tools of cutting and systems tool holders Sandvik Coromant offers a solution to this problem with the presentation of his new CoroDrill 881.
With a resistant design of plaquita to improve the reliability in unstable conditions (for example, when they use machines-tool older or less rigid) and a body of broca granallado to improve the resistance to the fatigue, the users can be safe that they will work with greater hygiene and greater precision in the taladrado of holes.
This innovative easy tool to use solves the problems of taladrado and is a particularly recommended option for applications with speed of advance of drop to average, as well as for applications no giratorias based in lathes. With two edges of cut by each plaquita, uses a geometry of general use of high performance (GM1) to accommodate any group of materials and like this can satisfy the needs of a wide fan of industrial states.
Some of the possible pieces are: bridas and cojinetes of rotation for the sector of the generation of electrical power; crankshafts, bielas and pieces of transmission for the manufacturers of trucks; bridas, reductores and manifolds for the oil industry and of gas; and protective boxes and pieces of hygiene for the manufacturers of pumps and valves.
In proofs of taladrado in components of bridas of stainless steel (CMC 05.21) using a broca of 16 to 17 mm of depth in a centre of mechanised vertical, CoroDrill 881 surpassed to a comparable product of the competition in 25% (taladrando 250 holes in front of 200) thanks to a greater hygiene of the process. In another application VMC, CoroDrill 881 completed 72 holes in Inconel 825 (CMC 20.2) with broca of 19 mm of diameter and hole of 25 mm of depth, in comparison with alone 56 holes using a broca of the competition.
Between the a lot of possibilities in applications no rotary presses, CoroDrill 881 can use to generate conical holes or to do holes of greater size that the diameter of the broca applying a past of mandrinado additional. Also they can achieve chamfers and reliefs, whereas it can prepare a hole for threaded in an alone past together with the achaflanado. Also it is important to mention that they can realise cuttings of finishing with the past of return (mandrinado to traction).
CoroDrill 881 is available in diameters from 14 until 23,5 mm to use with tool holders of attachment ISO 9766 or Coromant Attract (C4, C5, C6), although they also are available the options Tailor Made (to measure) to adjust to the individual requirements of each customer. The qualities preferred for the plaquita central are GC1044 or GC1144, whereas for the plaquita peripheral recommend the qualities GC2044, GC4044 or GC4024; in any case, the final selection depends of the material and of the application. The final selection depends of the material and of the application.
Related Companies or Entities
Sandvik Coromant Ibérica, S.A.
