Cutting tool insight

Arlington, Texas – The global metal machining industry requires faster, more accurate, and longer-lasting hole cutting tools that are able to deliver higher quality control standards. Partnering with the right cutting tool supplier can help slash hole making time, reduce costs, and improve quality.

Officials at ISCAR have launched several advanced new products, adding to the line of offerings in hole cutting.

HCP-IQ SUMOCHAM drilling heads  The SUMOCHAM drilling head line has been expanded with the introduction of a range of drilling heads that feature a new geometry. Engineers at ISCAR’s R&D department designed the drilling heads to feature unique, concave cutting edges, which allow gradual entry into material. This measured penetration reduces torque and cutting forces, significantly enhances the drills’ self-centering capability, and results in improved hole circularity, straightness, concentricity, and surface finish. Tighter dimensional tolerances can be achieved.

Available in 8mm to 25.9mm diameters, in 0.1mm increments, the HCP-IQ drilling heads enable the use of drills of up to 12xD, without the need for pilot holes. The heads are available for drilling precise holes prior to reaming operations.

The HCP drilling heads are made from the IC908 TiAlN PVD nano-layer coating grade, providing extended tool life, peeling resistance, and slow, stable wear progression. Also, by eliminating pilot hole operations, the new drilling heads slash machining cycle times, and reduce by half the number of tools required for drilling operations.

SUMOCHAM ICP-2M Designed for efficiently machining ISO P and ISO K materials, SUMOCHAM ICP/K-2M features a secondary rear margin that gives a wiping effect for improved performance requiring high standards of surface finish and cylindricity are required. The double margin provides extremely stable drilling and is recommended for use on interrupted cut and slant hole exit situations.

ISCAR’s ICP/K-2M improves hole cylindricity up to 0.05mm and enhances surface finish up to 1.6µm Ra. The ICP/K-2M range solutions for high quality, accurate pre-hole cutting, prior to reaming.

Reaming - the final process
Reaming is often the final process in a machining cycle. Tool failure at this stage will damage the part and in most cases scrap it, so using the most reliable reaming tool is essential.

A comprehensive range of reaming solutions, including tools for hole finishing applications, provide increased productivity and enhanced product quality. ISCAR reaming systems are designed to provide solutions for the most common hole tolerances (IT5 and up).

When surface finishing is required
The quality of a hole drilled in metal may not be accurate enough and may not have the required surface finish quality for a specific application. Drilling followed by reaming usually produces a hole quality and surface finish that is as close to theoretical perfection as possible. ISCAR’s high quality reamers are able to achieve a mean roughness of Ra 0.05µm (0.002µ") or greater, depending on the workpiece material.

Roundness
Roundness is the tolerance zone, which is limited in the measuring plane, perpendicular to the axis, by two concentric circles. ISCAR reamers are able to achieve roundness of 1µm (0.00004µ") and greater, depending on the workpiece material and machine condition.

Cylindricity
Cylindricity is the tolerance zone that is limited by two coaxial cylinders. ISCAR reamers can achieve the cylindricity of 2µm (0.00008µ") and greater, depending on the workpiece material and machine condition. 

BAYO T REAM system Featuring a solid carbide head, flexible steel shank, and secure clamping system, the BAYO T REAM is suitable for IT6 and greater reaming applications.

A frontal indexing system eliminates the need to disassemble the tool, ensuring fast setup times. Because the system has no unnecessary clamping spare parts, components cannot be lost when indexing.

High cutting feeds and speeds and extended tool life come from BAYO T REAM’s advanced PVD coating and the tool’s ability to direct coolant, including oil, emulsion, and minimum quantity lubrication (MQL) to each cutting edge.

The BAYO T REAM system’s single shank canaccommodate a wide range of hole diameters, various types of cutting edges, and different grades, while the pocket design is able to take an unlimited number of replacements.

The precision manufacturing is supported by the advanced system’s maximum runout specification of 3μm.

Source: Iscar Metals Inc.