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Home » Keywords » hobs

Items Tagged with 'hobs'

ARTICLES

Selecting Correct Size of Hob/Gashing Cutter

August 1, 2020
How does one select the correct size of hob/gashing cutter like hob OD, length and number of flutes for teeth cutting process based on tip circle diameter and face width of job?
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Upgrading Your Toolbox

May 1, 2017
Manufacturers focus on tool design, materials, coating, machine tool options and cutting parameters.
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Universal Hobs

March 1, 2017
Dr. Hermann J. Stadtfeld
Another expert takes a crack at a previously answered question about double-helical gears and universal hobs.
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Liebherr - Barber Colman Hob Settings

September 1, 2015
Hans Grass
I would like some instructions for setting the degrees and minutes on a Liebherr or Barber Colman hob. Our machines use a Vernier scale to match the lead angle of the cutter to the part to form straight teeth. There is a dispute on how to do this task, and I wanted insight from another professional.
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The Influence of Tool Tolerances on the Gear Quality of a Gear Manufactured by an Indexable Insert Hob

July 1, 2014
Recently, a new type of hob with carbide inserts has been introduced, providing higher cutting speeds, longer tool life and higher feed rates when compared to re-grindable, high-speed steel hobs. But with this kind of hob, new challenges occur due to positional errors of the cutting edges when mounted on the tool. These errors lead to manufacturing errors on the gear teeth which must be controlled. In this paper, the tooth quality of a gear manufactured by hobs with different quality classes is analyzed using a simulation model in combination with Monte Carlo methods.
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The Technology Shift

May 1, 2014
Decades ago, technology shifted from HSS to indexable inserts in turning and milling. This movement wasn't immediately realized in gear hobbing because coated PM-HSS hobs and complex gear profiles remained highly effective and productive methods. Only fairly recently have gear manufacturers started to take a serious look at indexable technology to cut gear teeth.
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Reinventing Cutting Tool Production at Gleason

May 1, 2013
Investment in advanced new manufacturing technologies is helping to reinvent production processes for bevel gear cutters and coarse-pitch hobs at Gleason - delivering significant benefits downstream to customers seeking shorter deliveries, longer tool life and better results.
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Progress in Gear Milling

January 1, 2013
Sandvik presents the latest in gear milling technologies.
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Full Speed Ahead

May 1, 2012
Matthew Jaster
Indexable carbide insert (ICI) cutting tools continue to play a pivotal role in gear manufacturing. By offering higher cutting speeds, reduced cycle times, enhanced coatings, custom configurations and a diverse range of sizes and capabilities, ICI tools have proven invaluable for finishing and pre-grind applications. They continue to expand their unique capabilities and worth in the cutting tool market.
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An Innovative Way of Designing Gear Hobbing Processes

May 1, 2012
In today’s manufacturing environment, shorter and more efficient product development has become the norm. It is therefore important to consider every detail of the development process, with a particular emphasis on design. For green machining of gears, the most productive and important process is hobbing. In order to analyze process design for this paper, a manufacturing simulation was developed capable of calculating chip geometries and process forces based on different models. As an important tool for manufacturing technology engineers, an economic feasibility analysis is implemented as well. The aim of this paper is to show how an efficient process design—as well as an efficient process—can be designed.
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More Articles Tagged with 'hobs'
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