Tooling solutions for machining cylinder blocks in ISO K and ISO N materials

Aluminum block

Cast iron block

The cylinder block is the component that serves as the main structure of the engine, and it is the housing of several different moving parts that together generate the power to move the vehicle.
For many years, the engine block has been manufactured using cast iron alloys due to its strength, low cost and wear resistance. But as engines become more complicated, new materials have been taken in use to reduce its weight, as well as to increase strength and wear resistance. Today’s most common materials for passenger car engines are aluminum alloys, because of their reduced weight and excellent casting properties. Commercial vehicles will continue to use cast iron, but in more high-strength alloys.
The manufacturing process of cylinder blocks involves the largest number of machines in automotive component production. There are also several complex processes and tight tolerances involved. The high demands in quality for cylinder blocks is crucial for the performance of the vehicle. Cost-efficient manufacturing is of great importance for these types of components.
Besides our extensive offer, Sandvik Coromant also has dedicated products and engineered solutions that fully support overcoming the challenges presented by manufacturing these components.

Tooling solutions that support manufacturing cylinder blocks:

ISO K solutions

CoroMill® 745 – Multi-edge face milling cutter for best production economy

The patented insert positioning system provides the same light cutting action and performance as a positive, single-sided milling cutter, but with a total of 14 cutting edges.
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CoroMill® 425 – Finishing concept for cast iron face milling

Specifically designed for the automotive business. The accurate and reliable adjustment system makes CoroMill 425 the easiest system on the market to use.
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CoroMill® 331 – Multi-purpose side and face milling cutter

CoroMill 331 is a multi-purpose side and face milling cutter with high-precision capability for numerous operations. The cutter is the most productive of its kind for producing grooves and for parting off.
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CoroMill® MS40– The ultimate tangential milling solution

CoroMill® MS40 is a true 90-degree cutter designed for accurate and reliable side milling and repeated passes. The outcome is flawless walls with precise dimensions, minimal roughness and perfect perpendicularity.

CoroDrill® 460 – Multi-application drill

CoroDrill 460 is a multi-application, high-performance drill that can be used across a wide range of materials. This drill provides high capacity utilization, flexibility and versatility.
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CoroDrill® 860 – Optimized multi-material drilling solution

CoroDrill® 860 with -GM geometry is a high-performance drilling solution for short holes, primarily in ISO P, M, K and H materials. It performs competitively in ISO N and ISO S materials as well. The drill offers robust process security, high hole integrity and excellent tool life
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CoroDrill® 880 indexable drill

CoroDrill 880, with its unique insert geometries and configuration, creates a balanced, step-by-step entrance into the workpiece. This reduces cutting forces to less than half that of typical insert drills, and virtually eliminates deflection on entry.
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CoroDrill® 400 and 430 – Flexible and precise drilling solutions

Customized tooling for the automotive industry. The straight-flute CoroDrill 400 and 3-flute CoroDrill 430 provide highly productive hole making in GCI, CGI and nodular cast iron, resulting in low cost per hole.
CoroDrill® 400
CoroDrill® 430

CoroTap® 100 KM – Straight-flute tap

Superior tool life and high productivity are just some of the benefits offered by this exceptional tool. Suitable for both through and blind holes.
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CoroTap® 200

CoroTap 200 features spiral-point taps for through holes designed to push the chips forward. The range includes versatile taps for various materials and optimized taps for specific materials and applications. TailorMade and Advanced engineered tools are available within the Customized solutions range.
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CoroTap® 300

CoroTap 300 is a range of spiral-flute taps suitable for tapping in blind holes up to 3 × D. There are different helix angles suitable for different applications. The range features versatile taps for various materials and optimized taps for specific materials and applications. TailorMade and Advanced engineered tools are available within the Customized solutions range.
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CoroTap® 400

CoroTap 400 is a high-speed, chip-free forming tap suitable for both through and blind holes in steel, stainless steel, aluminum and HRSAs. Versatile and optimized forming taps are available, with and without oil grooves, in an assortment of diameters, grades, coatings and thread forms, to suit a range of applications.
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B685 – Stable and productive cylinder boring, from roughing to semi-finishing

Cylinder boring is a key operation in the automotive industry: a high-speed operation with high requirements on tight tolerances. Until now, operators have adjusted the insert position manually, which is a time-consuming procedure and often requires special devices.
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B687 – Stable and productive finishing cylinder boring

The B687 cylinder boring bar is designed for productive and stable finishing. The cutter is available in different designs depending on operation. Use the three-cartridge design for reliable performance in under-coolant applications.
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B681 – Stable and productive roughing cylinder boring

B681 is designed and developed for roughing in cylinder boring operations. The solution produces excellent roundness and cylindricity, allowing for a smooth semi-finishing operation due to the integrated Silent Tools™ damped adapters.
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B683 – Stable and productive semi-finishing cylinder boring

B683 is designed and developed for semi-finishing in cylinder boring operations. The solution produces excellent roundness and cylindricity, allowing for a smooth finishing operation due to the integrated Silent Tools™ damped adapters.
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ISO N solutions

CoroDrill® 400 and 430 – Flexible and precise drilling solutions

Customized tooling for the automotive industry. The straight-flute CoroDrill 400 and 3-flute CoroDrill 430 provide highly productive hole making in aluminum, resulting in low cost per hole.
CoroDrill® 400
CoroDrill® 430