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Carbide drill

Showing 981 to 988 of 988 (36 Pages)

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d9,0mm 3xD belső hűtés nélküli fúró 50HRC-ig - Bartools - BR50-3D-090

6-12 working days

9mm 3xD carbide drill up to 50HRC - Bartools - BR50-3D-090

Article number: BR50-3D-090

18.76 € + VAT (23.83 €)

9mm 3xD belső hűtés nélküli fúró 52HRC-ig - DHF - DAK090

6-12 working days

9mm 3xD carbide drill up to 52HRC - DHF - DAK090

Article number: DAK090

Catalog I Cutting parameters

44.00 € + VAT (55.88 €)

9mm 3xD belső hűtéses fúró 52HRC-ig - DHF - DAO090

6-12 working days

9mm 3xD inner cooling carbide drill up to 52HRC - DHF - DAO090

Article number: DAO090

Catalog I Cutting parameters

59.20 € + VAT (75.18 €)

9mm 5xD belső hűtés nélküli fúró 45HRC-ig - DHF - DBQ090

6-12 working days

9mm 5xD carbide drill up to 45HRC - DHF - DBQ090

Article number: DBQ090

Catalog I Cutting parameters

44.00 € + VAT (55.88 €)

9mm 5xD belső hűtés nélküli fúró 52HRC-ig - DHF - DBK090

6-12 working days

9mm 5xD carbide drill up to 52HRC - DHF - DBK090

Article number: DBK090

Catalog I Cutting parameters

47.20 € + VAT (59.94 €)

9mm 5xD belső hűtéses fúró 52HRC-ig - DHF - DBO090

6-12 working days

9mm 5xD inner cooling carbide drill up to 52HRC - DHF - DBO090

Article number: DBO090

Catalog I Cutting parameters

60.80 € + VAT (77.22 €)

9mm 8xD belső hűtéses fúró 52HRC-ig - DHF - DCO090

6-12 working days

9mm 8xD inner cooling carbide drill up to 52HRC - DHF - DCO090

Article number: DCO090

Catalog I Cutting parameters

113.60 € + VAT (144.27 €)

9mm l51,4 L103 D10 3xD keményfém fúró 52HRC-ig DAN - DHF - DAN090

6-12 working days

9mm l51,4 L103 D10 3xD carbide drill up to 52HRC DAN - DHF - DAN090

Article number: DAN090

Katalógés és paraméterek

64.00 € + VAT (81.28 €)

Showing 981 to 988 of 988 (36 Pages)

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Carbide is the most widely used material in today's modern tools. Unlike high-speed steel, the basic material of carbide is not iron but tungsten carbide (WC), which can be complemented by other carbides (TiC, TaC) and cobalt as a connecting element. Carbide has a higher compressive strength than high-speed steel, is harder and more wear-resistant, but is more brittle and fragile because it has a lower flexural strength. The quality and properties of a carbide are determined by the proportion of raw materials (more Co = higher toughness, lower hardness). By reducing the grain size, the carbide can also be improved. The first powder metallurgical carbide (WC embedded in Co binder) was produced in 1923 by the German company Krupp, patented under the brand name Widia and is still marketed today.

The carbides used to make cutting tools consist of tungsten, titanium and cobalt carbides. The constituents are ground into a fine powder, from which small plates of various shapes are pressed, pre-sintered in a furnace and then sintered to a finished shape. The slabs thus produced reach a hardness which cannot be controlled by subsequent heat treatment. Because carbides are expensive, carbide is rarely used to make a solid, complete tool. Cutting inserts are fixed (mechanically or by soldering) in a nested tool body made of various tool steels or structural steels.

Fully carbide-tipped, actively cooled (with a cooling water conducting hole) auger bits are significantly more productive than high-speed steel auger bits. When working through holes with a twist drill, the drilling target coordinate is below the bottom plane of the workpiece. It is good practice for the operator to use the drilling formula 0.3xD. For example, the tip (...the programmed point) of a d12 mm drill bit must be advanced 3.6 mm beyond the bottom plane of the workpiece in order to break through safely.

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