Fatigue Performance of Prealloyed PM Steel
Powder metal (PM) materials that exhibit excellent heat treated properties and achieve good fatigue performance are needed to convert wrought components and gears to...
Robotic Gear Processing
Henry Ford once said “If you need a new process and don’t install it, you pay for it without getting it.” Nowhere is this...
A New Approach to Shop-Floor Gear Inspection
Gear production is one of the most difficult tasks to be found in modern manufacturing. Producing complex, non-linear, three-dimensional geometries in hard, strong materials...
Axis of Rotation Metrology for Improved Gearing
In the history of machine tools, spindles have been very good relative to other bearings and structures on the machine. So quality professionals have...
New Gains in Grinding Pinions
The demand for lower costs and higher flexibility are shaping modern production more than ever before. Mechanical engineering companies are in turn required to...
Gear Hardening Goes Green
In his annual message to Congress in December of 1862, President Abraham Lincoln concluded with the words “We can succeed only by concert. It...
Gear Tooth Fillet Profile Optimization
Historically, gear geometry improvement efforts were concentrated on the working involute flanks. They are nominally well described and classified by different standard accuracy grades,...
Cryogenic Treatment of Gears
Most companies are looking for a secret that can help them keep a step ahead of the competition... a little edge to run faster,...
Gear Tooth Temperature Measurements
This paper presents the technique developed to measure the temperature on various active portions of a gear operating under load, at high speeds, and...
Gear Cleaning Goes Ultrasonic
The techniques for manufacturing gears and gear components do not differ dramatically from other industries. Precision cutting, grinding, polishing, and buffing are all part...
Automated Gearbox Testing
Any gear manufacturing company that has worked with the United States military realizes how demanding their requirements can be. That’s certainly the case with...
A Software Solution for Gear Noise Problems
Finnish-based tractor manufacturer Valtra’s continued drive toward innovation remains imperative for its future success. With tractor sales falling worldwide in 2009, they must continue...
Duration Through Diversification
As the gear manufacturing industry weathers the economic downturn along with everyone else, one key to survival involves remaining active in a wide range...
Bearing Reliability in Rebuilt Gearboxes
Fifty years of ongoing development has given SKF a bearing vibration analyzer that can probe deep into rotating bearings while they are under load....
Low Pressure Carburizing for Transmissions
With the many advances that have taken place to improve quality in the gear industry, it is only logical that heat treat services would...
Retained Austenite Stabilization
The phenomenon of retained austenite stabilization in tool steels is well documented . When a steel with a martensite finish temperature (Mf) below room...
Dimensional Stability in Cryogenic Treatments
When cryogenically treated, case carburized steel (En 353) showed tremendous improvement in wear resistance . This is due to the microstructural changes such as...
High Pressure Water Deburring
Increasingly, gear manufacturers and others are expected to deliver burr-free clean parts to the point of use. To meet this challenge, part manufacturers are...
Lubricant Contaminants Limit Gear Life
Lubricant cleanliness refers to the absence of contamination.1 Microscopic particles are the most harmful form of contamination in lubricants. They can irreversibly damage gear...
Abrasiveness of Boron Carbide Coatings
Hard coatings, such as boron carbide (B4C), can quickly polish the surface of the mating material during sliding contact. The abrasiveness of such coatings...
