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| Construction:
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| MATS Built-Up Hobs are made from smaller cross-sections
of pre-formed forged and rolled bars of Molybdenum grade High Speed Steel,
hardened, ground and separately fixed in, a toughened body made from special
steel. End rings are fitted at either ends of the Hob to ensure a positive
grip and provide for proper clamping arrangements.
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| Salient Features:
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The blades being made from comparatively smaller cross
section of H S S pre-formed forged and rolled bar, have advantage because of
superior carbide distribution and grain structure. This results in obtaining
optimum heat treatment and imparting improved and excellent cutting
properties.
The blades are ground in a worm configuration with large dia grinding wheels
with affluent use of coolant. This enables
Closer accuracy on modifying features, eg. Protuberance, semi topping,
topping etc.
A uniform tooth profile ground from start till end.
Preventing grinding burns.
Because of separate grinding of blades and subsequent fitting in the body,
higher relief angle is possible, unlike in Solid Hobs, thus improving the
cutting efficiency.
MATS Built-up Hobs have straight gashes, making resharpenings easier and
minimize the resharpening errors.
Built-up Hobs can be used at higher cutting speeds and feeds.
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| Build-up Hobs are proved to have:
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Long tool life and an exceptional stock removing
capacity.
Better heel width (more resharpenings)
Larger useful length (permitting more number of Hob shifts)
Optimal cutting edge geometry (higher degree of accuracy).
In totality lower cost per component. The Built-up hobs can be supplied TiN
coated.
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| Key Parameters:
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Larger useful length – permits more number of hob
shifts
Can be supplied Tin coated.
Material : Blades – Specially forged Body – Spring Steel
Accuracy : AA, A.
Forms : Same as Solid Hob.
Size range : 0.75 to 9 Module; Dia. : 80 to 150 mm.
Longer tool life and exceptional stock removing capacity.
In totality lower cost per component.
Each Item tested on Hoffler Gear Tester.
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