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Sunnen says its new HTE honing system, the company's most cost-effective small-diameter hone, produces ideal bore geometry and surface finish, while eliminating problems from bad tool-to-part alignment and excessive feed rates that cause tool breaks and scrap parts. The new tube hone's one-piece base maintains tool/part alignment, and a special feature of the feed system provides maximum protection against tool overloading. Tool specific force limits and run settings are stored in the Windows-based touch-screen control. A feed system senses tight sections in the part and corrects them automatically.
The HTE handles parts up to 60" (1524mm) long and has an ID range of 0.160"-0.750" (4-19mm), making it ideal for improving the finish and performance of safety valves in oil field parts, tubing for nuclear energy fuel rods, raw materials for pharmaceutical stents and gun barrels as small as .17 caliber, among others.
"The one-piece base not only improves the machine's performance, it makes it more affordable," said Dennis Westhoff, business development manager for Sunnen. "The spindle power is also reduced on the low end, making the machine extremely sensitive to tool overloads in long, narrow bores."
The HTE's servo-controlled, variable speed spindle (5-2100 RPM) and stroke motors (1-98 ft/min, 1-30 m/min) produce superior stock removal rates in Inconel, 410 stainless steel, zirconium and titanium alloys. The HTE can utilize a variety of Sunnen tooling types includingmmT, LFT-DX and GH tools.
Three fixturing options are available: a manual chuck, a pneumatic chuck, or a V-type chain vise for parts with OD's up to 6" (150mm). A travelling steady rest is standard. An optional guide pot automatically guides the honing tool straight into the bore without operator assistance. Standard, non-CE guarding includes easily removable covers for each end of the honed part, while optional CE guarding includes a light curtain and wire mesh enclosure.
Related Glossary Terms
- alloys
alloys
Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.
- chuck
chuck
Workholding device that affixes to a mill, lathe or drill-press spindle. It holds a tool or workpiece by one end, allowing it to be rotated. May also be fitted to the machine table to hold a workpiece. Two or more adjustable jaws actually hold the tool or part. May be actuated manually, pneumatically, hydraulically or electrically. See collet.
- feed
feed
Rate of change of position of the tool as a whole, relative to the workpiece while cutting.
- inner diameter ( ID)
inner diameter ( ID)
Dimension that defines the inside diameter of a cavity or hole. See OD, outer diameter.
- steady rest
steady rest
Supports long, thin or flexible work being turned on a lathe. Mounts on the bed’s ways and, unlike a follower rest, remains at the point where mounted. See follower rest.
