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New Floating Holders Follow The Smallest Offset to Improve Single-Pass Honing Accuracy

By: PRLog

Made-in-Japan by Takezawa-Seiki, The New FHN Series Now Available for North America

BELLFLOWER, Calif. - July 10, 2023 - PRLog -- The new Takezawa-Seiki FHN Series floating holders follow the smallest offset to improve single-pass honing accuracy. The New FHN Series are now available in North America thru online shop

Honing is a popular abrasive machining process that produces a precision surface on a metal workpiece by scrubbing an abrasive grinding stone or grinding wheel against it along a controlled path. Typical applications are the finishing of cylinders for internal combustion engines, air bearing spindles and gears. There are many types of hones, but all consist of abrasive stones that are held under pressure against the surface they are working on.

In honing, where very high precision is required, even small deviations between the center of the tool and the center of the pilot hole can have a significant impact on machining accuracy, quality, and tool life. Takezawa Seiki's FHN floating honing tool holder, designed specifically for one-pass honing, delivers key benefits including:

* Improves Single-Pass Honing Accuracy
* Follows even the Smallest Offset
* Extends Tool Life

The FHN Series method compensates for small offsets, including tilt, between the center axis of the tool and the pilot hole. By correcting the offset that occurs when attaching and detaching tools with the holder, it is now possible to achieve higher precision machining.

Depending on the degree of misalignment, the machining accuracy, such as surface roughness and roundness, may deteriorate. As the honing tool is pushed forcefully into the pilot hole's deviated position, it also experiences a load due to the reaction force from the pilot hole. This misalignment not only degrades the machining accuracy but also results in quality variations.

Takezawa Seiki's floating holder maintains a constant transmission torque, unlike conventional floating holders whose transmission torque is prone to fluctuations. Such fluctuations can result in variations in quality and load on the tool.

While other floating honing holders can compensate for offset-related problems, they themselves can cause other issues. However, Takezawa Seiki's floating holder has a unique mechanism that enables it to maintain a constant transmission torque.

Two models available for order online:
1. FHNS12C1: 12mm Shank with ER20 Collet
2. FHNS25C2: 25mm Shank with ER32 Collet

Order Online:

About Takezawa-Seiki
Formed in 1962, Takezawa-Seiki is a Japan-based engineering and manufacturing company with a time-proven catalog of machines and tools dedicated to high precision reaming and honing.

About Japan USA Precision Tools
JUPT specializes in Made-in-USA and Made-in-Japan precision machines & accurate made-to-order tooling for tight tolerance alloy steel, cast iron & ceramic applications.

Greg Wible

Photos: (Click photo to enlarge)

Japan USA Precision Tools Logo Takezawa Seiki Floating Holder Japan USA Precision Tools

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