Sunnen Products Co.

The company’s multi-feed honing technology is designed to give users a revolutionary choice of tool-feed modes to achieve the short cycle times, low part cost and long abrasive life.

The SV-1005 series vertical CNC honing system with integrated air gaging system provides closed-loop control of tool size and downloadable SPC data.

At IMTS 2010, Sunnen was demonstrating multi-feed honing, a new technology that gives users a choice of tool-feed modes to help them achieve shorter cycle times, lower part cost and longer abrasive life.

Sunnen's multi-feed honing technology gives users a revolutionary choice of tool-feed modes to achieve the shortest cycle times, lowest part cost and longest abrasive life.

Custom bore profiles for diesel cylinder liners are among the new capabilities introduced on the SV-500 Series vertical CNC honing system.

SHO-500 is a general-purpose honing fluid based on a renewable vegetable formulation that makes sustainable metalworking affordable and practical, the company says.

Sunnen's SV-400 series vertical CNC honing system combines a choice of tooling options, large work envelope, and as much as 1,524-mm (60") stroke for bore sizing of small and medium-sized gas/diesel engine blocks, oil/gas components, hydraulic/pneumatic parts, compressors, bearing sleeves, gear hobs and similar small or large multi-bore parts.

Conventional honing has been continuously improved and automated, now allowing boring accuracies to be measured in millionths.

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Sunnen Products’ 64-page Engine Honing Equipment catalog is a comprehensive industry source for engine builders and racing professionals looking for tooling, abrasives, gages, honing oils/coolants, parts and honing machine accessories—virtually everything needed for bore sizing on engines of any type or size. According to the company, the catalog is organized in an easy-to-navigate format with enlarged part diagrams and detailed descriptions for the reader to quickly locate specific products, along with complete part and ordering information.

The SV-1000 series vertical CNC honing machine is engineered to scale up from a single-spindle machine to a fully automated multi-spindle unit for ultra-precise bore sizing and finishing. Designed for part diameters ranging from 0. 120" to 2.

 Somtimes high precision is mandatory. This artilce looks at honing as a process to meet tight specs.

Sunnen's SV-310 vertical CNC honing system combines multi-spindle machine configurations with wide tooling choices and 762 mm/30" stroke for bore sizing of small and medium-sized gas/diesel engine blocks, large gears, air compressors, aerospace parts, refrigeration compressors and similar small or large multi-bore parts. A work envelope of 1,016 mm × 1,778 mm (40" × 70") and weight capacity of as much as 909 kg (2,000 lbs) provide versitility for processing a range of parts.

Automating the honing process is key to high-volume precision bore production with sub-micron accuracy.

Sunnen's SV-1000 vertical CNC honing machine series is based on a modular design, engineered to scale up from a single-spindle machine to a fully automated multi-spindle unit for bore sizing and finishing. Designed for part diameters of 3 mm to 65 mm (0.120" to 2.56") , the machines can size bores to accuracies of

Sunnen's PG-Series bore gages are especially useful for fast, simple, economical process control in a lean manufacturing environment, the company says. The gages do not need electrical or air connections, making them immune to fluctuation in line voltage or air pressure. These gages can be mounted right at machining stations, and unique gaging fixtures enable 2-minute setup, while eliminating the need and expense for plug gages, mikes, jo blocks, and so on.

Sunnen's SV-1005 series vertical CNC honing system is available with an integrated air gaging system to provide closed-loop control of tool size, along with downloadable SPC data. Matched with the company's diamond-plated CGT Krossgrinding tools or MMT TurboHone multi-stone mandrel, the air-gage equipped machine can automatically control hole size to accuracies of 0. 25 micron without operator intervention, working in a size range of 3-mm to 65-mm diameter.

Sunnen's SV-1005 series vertical CNC honing system is available with an integrated air gaging system to provide closed-loop control of tool size, along with downloadable SPC data. Matched with the company's diamond-plated CGT Krossgrinding tools or MMT TurboHone multi-stone mandrel, the air-gage equipped machine can automatically control hole size to accuracies of 0. 25 micron without operator intervention, working in a size range of 3-mm to 65-mm diameter.

Sunnen Products Company’s ML-4000 power-stroked honing machine is designed for bore sizing and finishing applications. According to the company, the machine is as many as six times faster than ID grinding and other honing processes, and also can be set up in half the time. It is said that its fast stock removal rates can allow the elimination of preliminary reaming, boring or grinding on many jobs.

Sunnen’s SV-1005 series vertical CNC honing system is available with an integrated air gaging system to provide closed-loop control of tool size as well as downloadable SPC data. Combined with the company’s diamond-plated Krossgrinding tools or MMT TurboHone multi-stone mandrel, the machine can control hole size to accuracies of 0. 00001" (0.

While available both in horizontal designs and vertical designs, three different machining methods are used for honing operations. The most common method, effective on a range of diameters and materials, uses multistroke machines to hone with one or more abrasive stones attached to a single rotating spindle.

Useful for precision honing bores in sizes ranging from 0. 750" to 8" (19 mm to 203 mm), Sunnen’s SV-10 is equipped with an auto dwell and rough and finish cycle. The auto dwell feature allows for unattended operation.

The VSS Single Stroke Honing System can handle diameter ranges from 0. 154" (3. 9 mm) to 0.

- KGM Krossgrinding Systems product sheet provides details on both the machines and honing tools, including key features and specification information- The KGM-5000NT and KGM-1000NT systems offer consistent bore size control and can deliver accuracies to 0. 00025 mm (0. 000010") in a production environment .

The ML-2000 honing machine offers bore sizing and finishing technology for job shop and mid-volume production applications. The machine can run Sunnen's multi-stone mandrels (TurboHone series) and has twice the power and more speed than older Sunnen MBC-style honing machines. According to the company, with a computer control, it is easier to set up and changing belts or pulleys is eliminated.

The KGM 5000 Krossgrinding system provides accuracy in bore sizing and finishing and is designed for low- to mid-production applications. It delivers accuracies up to 0. 00025 mm (0.

High-Production Helix (HPH) Single Stroke Honing tools offer fast stock removal, consistent bore geometry and can be designed to economically optimize specific high-production applications. Plated diamond honing tools are manufactured with high strength steel as opposed to cast iron. They incorporate an expandable, superabrasive sleeve mounted on a tapered mandrel for precision bore sizing and finishing.

- Provides details on  the VSS Single Stroke Honing System including information on both the machine and honing tools and extensive information on key features and specifications- VSS is a single-pass honing machine that produces precise bore size, geometry and surface finish.

The SV-1000 vertical honing system delivers precision honing to medium- to high-volume small bore applications, 3 mm to 65 mm (0. 120" to 2. 56").

- Find specification and application data on the ML-5000 power stroked honing machine- Case histories are included that highlight the savings generated from the machine's efficiency- Refer to the illustration with feature call outs to help explain the control system.

The SV-200 vertical honing system features a tool stroking system that has a consistent crosshatch pattern throughout the entire bore length. This design allows the machine to dwell in any part of the bore, end-to-end, to selectively remove stock The system incorporates a Windows-based control system with drop-down menus displayed on an industrial PC touchscreen color display. Storage capacity for job setups is virtually unlimited.

The SV-200 and SV-1000 are servo-controlled, linear tool stroking systems said to ensure precise bore geometry. The tool stroking system produces a true vertical stroke, which is said to result in more control and higher accuracy in bore size and finish. With this new stroke design, users can obtain a consistent cross-hatch pattern throughout the length of the bore.

Helix-plated diamond Single Stroke honing tools offer fast stock removal and consistent bore geometry and can be designed to optimize a specific high-production application, the company says. The tools go though the bore only once, removing a predetermined amount of stock, progressively enlarging the bore. After the final pass, the bore is the correct size, and is straight and round with the desired surface texture, according to the company.