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Articles About nitriding


1 New Approaches to Nitriding (March/April 1997)

The process of nitriding has been used to case harden gears for years, but the science and technology of the process have not remained stagnant. New approaches have been developed which are definitely of interest to the gear designer. These include both new materials and new processing techniques.

2 The Advantages of Ion Nitriding Gears (November/December 1996)

When it comes to setting the standard for gear making, the auto industry often sets the pace. Thus when automakers went to grinding after hardening to assure precision, so did the machine shops that specialize in gearing. But in custom manufacturing of gears in small piece counts, post-heat treat grinding can grind away profits too.

3 Investigation of Surface Layer and Wear Behavior of Nitrided Gear Drives (March/April 1994)

In this article we will characterize the nitride layers that are generated by different nitriding processes and compare their respective wear characteristics.

4 The Effects of Surface Hardening on the Total Gear Manufacturing System (January/February 1991)

Carburized and hardened gears have optimum load-carrying capability. There are many alternative ways to produce a hard case on the gear surface. Also, selective direct hardening has some advantages in its ability to be used in the production line, and it is claimed that performance results equivalent to a carburized gear can be obtained. This article examines the alternative ways of carburizing, nitriding, and selective direct hardening, considering equipment, comparative costs, and other factors. The objective must be to obtain the desired quality at the lowest cost.

5 PPD Wear Protection Treatment for Large Parts Opens New Horizons (March/April 2014)

Environmentally friendly, highly efficient and lasting a product's lifetime. With characteristics like this, Pulsed-Plasma Diffusion (PPD) technology from Oerlikon Balzers has established itself as an industry standard for the treatment of large automotive press tooling. Now the technology specialists are targeting new applications with this advanced process, offering an alternative to traditional hard-chrome processes.

6 Selection of Material and Compatible Heat Treatments for Gearing (May/June 1986)

The manufacturing process to produce a gear essentially consist of: material selection, blank preshaping, tooth shaping, heat treatment, and final shaping. Only by carefully integrating of the various operations into a complete manufacturing system can an optimum gear be obtained. The final application of the gear will determine what strength characteristics will be required which subsequently determine the material and heat treatments.

7 High Temperature Gear Materials (November/December 2013)

What gear material is suitable for high-temperature (350 550 degree C), high-vacuum, clean-environment use?

8 Gear Hardness Technology (March/April 1992)

In a very general sense, increasing the hardness of a steel gear increases the strength of the gear. However, for each process there is a limit to its effectiveness. This article contains background information on each of the processes covered. In each section what is desired and what is achievable is discussed. Typical processes are presented along with comments on variables which affect the result. By reviewing the capabilities and processes, it is possible to determine the limits to each process.

9 New Vacuum Processes Achieve Mechanical Property Improvement in Gearbox Components (August 2007)

This paper introduces new process developments in low-pressure carburizing and carbonitriding using either high-pressure gas quenching or interrupted gas quenching.

News Items About nitriding

1 Advanced Heat Treat Installing $1.5 Million Large Capacity Ion Nitriding Vessel (January 4, 2007)
Advanced Heat Treat Corp. is installing one of the world's largest ion nitriding vessels in their new Cullman, AL service center, cur... Read News

2 Chinese Company Orders Nitrex Nitriding System (May 28, 2013)
Nitrex Metal received a follow-up order for a nitriding system from Shaoguan Hongda Gear Co. Ltd, a Chinese contract manufacturer of tran... Read News

3 Seco-Warwick Offers Nitrion Plasma Nitriding to South America (May 8, 2014)
Nitrion Technology and Seco/Warwick do Brasil have signed a cooperation agreement to manufacture and market cold wall plasma nitriding equipment in South America... Read News

4 Shaoguan Hongda Gear Co Purchases Turnkey Nitriding System (June 7, 2010)
Nitrex Metal Inc. received an order from Shaoguan Hongda Gear Co. Ltd., a Chinese manufacturer of transmission components, for a turnkey ... Read News