Home | Advertise | Subscribe

Magazine | Newsletter | Product Alerts

Gear Technology Magazine

(instructions)Mouse over image to pause slideshow. Click on image to view article

The hob is a perfect example of how a little manufacturing ingenuity can make a reliable, highly productive cutting tool. It's an engineering specimen that creates higher cutting speeds, better wear resistance and increases rigidity. The cutting tool alone, however, can't take all the credit for its resourcefulness. Advanced coating technology from companies like Sulzer, Oerlikon Balzers, Ionbond, Seco Tools and Cemecon helps improve cutting tools by reducing overall costs, increasing tool life and maintaining the highest levels of productivity. The following is a quick recap of new technologies and the latest information in the coating market.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.When a customer needed gears delivered in three weeks, here’s how Brevini Wind got it done.The Tiger Team from Hoerbiger looks for ways to cut waste and improve throughput in the company's assembly cell.It’s been said that the best ideas are often someone else's. But with rebuilt, retrofitted, re-controlled or remanufactured machine tools, buyer beware and hold onto your wallet. Sourcing re-work vendors and their services can require just as much homework, if not necessarily dollars, as with just-off-the-showroom-floor machines.The essence of designing gears is often by necessity risk-averse, given that many of them are used in applications where loss of life is a distinct possibility. The Gear Research Institute (GRI) at The Pennsylvania State University conducts risk reduction testing with the same goal in mind - whether it be gears in fighter jets, Ferris wheels, tanks, or countless other gear-reliant vehicles and machinery.What is the difference between pressure angle and operating pressure angle?A gear design optimization approach applied to reduce tooth contact temperature and noise excitation of a high-speed spur gear pair running without lubricant. Optimum gear design search was done using the Run Many Cases software program. Thirty-one of over 480,000 possible gear designs were considered, based on low contact temperature and low transmission error. The best gear design was selected considering its manufacturability.It is widely recognized that the reduction of CO2 requires consistent light-weight design of the entire vehicle. Likewise, the trend towards electric cars requires light-weight design to compensate for the additional weight of battery systems. The need for weight reduction is also present regarding vehicle transmissions. Besides the design of the gearbox housing, rotating masses such as gear wheels and shafts have a significant impact on fuel consumption. The current technology shows little potential of gear weight reduction due to the trade-off between mass optimization and the manufacturing process. Gears are usually forged followed or not by teeth cutting operation.Composite spur gears were designed, fabricated and tested at NASA Glenn Research Center. The composite web was bonded only to the inner and outer hexagonal features that were machined from an initially all-metallic aerospace quality spur gear. The hybrid gear was tested against an all-steel gear and against a mating hybrid gear. Initial results indicate that this type of hybrid design may have a dramatic effect on drive system weight without sacrificing strength.

May 2013 Gear Technology

May 2013 issue of Gear Technology

Table of Contents

See other back issues

Subscribe to Gear Technology (FREE!)


Gear Technology Videos


Major investments have been made at FLSmidth MAAG Gear's gear production in Elblag enabling FLSmidth MAAG Gear to cut its own bevel gears.

Recent Videos

Gear Milling with DMG

Star Cutter Company Overview

Bevel Gear Solutions

Klingelnberg Spiral Bevel Gear Cutting

Gear Inspection Software

...more


Gear Industry News(see older news)

Hexagon Metrology recently announced the signing of an Innovation Partnership contract renewal with Red Bull Technology which runs until ...Hexagon Renews Contract with Red Bull Technology (May 23, 2013)
Hexagon Metrology recently announced the signing of an Innovation Partnership contract renewal with Red Bull Technology which runs until ...

Bipin N. Doshi, president and CEO of Schafer Gear Works, has announced a restructuring of the organization. Effective May 1, the company ...Schafer Gear Restructures Organization (May 22, 2013)
Bipin N. Doshi, president and CEO of Schafer Gear Works, has announced a restructuring of the organization. Effective May 1, the company ...

In recognition of the expansions of its North American Headquarters campus in Florence, Kentucky, Mazak Corporation received the Cincinna...Mazak Honored for Manufacturing Investments (May 22, 2013)
In recognition of the expansions of its North American Headquarters campus in Florence, Kentucky, Mazak Corporation received the Cincinna...

Hainbuch America Corporation has announced that James Woods has been appointed president for its Germantown, Wisconsin based company. Woo...Hainbuch Names Woods President (May 20, 2013)
Hainbuch America Corporation has announced that James Woods has been appointed president for its Germantown, Wisconsin based company. Woo...


Gear Industry Events(see more events)

Gear Design and Theory - June 2013 (June 3-6)
Gleason Cutting Tools Gear School, Loves Park, Illinois. This comprehensive three and a half day program is a blend of shop time and clas...

Gear Design and Theory (The Gleason Works) (June 3-7)
Rochester, New York. Gleason has over 145+ years of expertise in production of gear manufacturing machinery. They provide customers with ...

Cutting Processes (The Gleason Works) (June 3-7)
Rochester, New York. Gleason has over 145+ years of expertise in production of gear manufacturing machinery. They provide customers with ...

NAMRC 41 (June 10-14)
Monona Terrace Community and Convention Center, Madison, Wisconsin. The North American Manufacturing Research Conference is sponsored by ...

Cutting Processes (The Gleason Works) (June 10-14)
Rochester, New York. Gleason has over 145+ years of expertise in production of gear manufacturing machinery. They provide customers with ...