2014-2015 Полный каталог инструмента Mitsubishi (Митсубиси) EN

CARBIDE                                                                       для заказа - info@mitsubishitools.ru

          DRILLING (SOLID CARBIDE)

          MHS

          y OPERATIONAL GUIDANCE FOR THE MHS LONG TYPE DRILL (L/D > 10)

            FLAT FACE DRILLING aDrilling a blind hole                                    y 2. Initial cutting with the long type drill

          y 1. Drilling a pilot hole

          z	U se a drill with a larger (flatter) point angle than the super long type.  z	P enetrate the pilot hole at low revolution. (Revolution
                                                                                           1000min-1, feed rate 0.2  0.3mm/rev)
            Use the shortest flute possible.
          x	Ensure a high precision hole is drilled for the guide.                       x	S top the long type drill 0.5  1mm short of the pilot hole bottom.
          c	Drill depth : Approx 1D or deeper.
          	(Adjust the pilot hole depth according to the length of the super long

            type drill.)

          y 3. Drill the deep hole                                                       y 4. Drill retraction

          z	S tart cutting at the recommended speed and feed with a non-peck            z	A fter drilling, lower the cutting revolution about 0.5  1mm short of the
            (continuous feed) cycle.                                                       hole end. (Revolution of around 1000min-1)

                                                                                         x	R etract the drill to the pilot hole depth starting point at a feed rate of

                                                                                           3000mm/min.
                                                                                         c	F inally, clear the hole at a cutting speed of 20  30m/min and feed rate

                                                                                           of 0.2  0.3mm/rev.

          INTERRUPTED DRILLING aDrilling and breaking through on irregular faces or angles

          y 1. Spot facing                                                               y 2. Drilling a pilot hole

          z	M achine a flat or the irregular face by using an end mill or slot drill    z	U se a drill with a larger (flatter) point angle than the super long type.
            capable of spot facing. Make the spot face diameter the same size as
            the required deep hole diameter.                                               Use the shortest flute possible.
                                                                                         x	Ensure a high precision hole is drilled for the guide.
DRILLING                                                                                 c	Drill depth : Approx 1D or deeper.
                                                                                         	(Adjust the pilot hole depth according to the length of the super long

                                                                                           type drill.)

          y 3. Initial cutting with the long type drill                                  y 4. Drill the deep hole

              z	P enetrate the guide hole at a low revolution. (Revolution                  z	S tart cutting at the recommended speed and feed with a non-peck
                 1000min-1, feed rate 0.2  0.3mm/rev)                                          (continuous feed) cycle.

              x	S top the long type drill 0.5  1mm short of the pilot hole bottom.     y 6. Drill retraction

          y 5. Breaking through

          z	W hen breaking through, the cutting edge can be damaged.                    z	F inally clear the hole at a cutting speed of 20  30m/min and feed rate of
          x	L ower the feed rate when penetrating.                                        0.2  0.3mm/rev.

                                                                                         x	R etract the drill to the pilot hole depth starting point at a feed rate of

                                                                                           3000mm/min.

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