Surface Hardening: Hard Turning or Grinding?
Hard turning and grinding are competing finishing processes for the manufacture of precision mechanical components such as bearings, gears, cams, etc. Surface hardening at...
Planetary Gear Parametric Instability
Parametric instability is investigated for planetary gears where the fluctuating stiffness results from the changing contact conditions at the multiple tooth meshes. The time-varying...
Face-off: Face Hobbing vs. Face Milling
Less than 10 years ago the selection of machinery was a system decision; presently continuous indexing (face hobbing) and single indexing (face milling) are...
Time to Shift Gears on Heat Treating?
How many times have you heard this conversation?
Production manager: “Where’s the 72-piece bevel gear order that should be at grind right now?”
Purchasing agent: “It’s...
Case Study: Butler Gear/Cosen Saws
Like links in a chain, every aspect of your manufacturing process is connected, and if one of them fails or isn’t performing up to...
Turbo – Abrasive Machining for Edge and Surface Finishing
Turbo-Abrasive Machining is a mechanical deburring and finishing method originally developed to automate edge finishing procedures on complex rotationally oriented and symmetrical aerospace...
Bending Fatigue of Surface Densified Gears
Surface densified powder metal gears and conventional wrought steel gears were tested using a pulsator and a back-to-back gear tester to develop bending fatigue...
Oil Quenching Technologies For Gears
Oil quenching is a logical choice for gears. Atmosphere and vacuum carburizing carbonitriding of gears followed by oil quenching is a popular choice among...
Diagnostic Tool Helps Develop Profile for Induction Hardening Process
Combining process monitoring and a diagnostic tool to develop a process for contour (profile) hardening gear teeth or tooth-like objects on parts having gear-like...
Superior Bearings for Extruder Gearboxes
Demand for plastic components and materials in industrial and consumer applications is growing rapidly, and in all geographic regions. As demand increases, original-equipment manufacturers...
Surface Enhancement: The Mikronite Process
Friction and wear can be found in every moving object, from the cars we drive to the lifesaving devices used to keep our blood...
Gaining the Edge in CBN Tool Performance
Users of “superhard” materials such as CBN (cubic boron nitride) in cutting tools commonly believe that chamfering — also known as applying a “T-Land”...
Coating Applications for Spur Gears
Introduction
The power density of a gearbox is an important consideration for many applications and is especially important for gearboxes used on aircraft. One factor...
Improving Energy Efficiency with the Proper Gear Oils
Many factors come into play when selecting gear oils, including the projected life of a gearbox, its seals, and the desired performance of the...
A Novel Hob Design for Precision Involute Gears Part II
Abstract
This paper is aimed at the development of a novel design of precision gear hob for the machining of involute gears on a...
Comparing Castings and Forgings
Material selection is one of the most crucial decisions made in the design, manufacture, and application of large structural components. Material selection naturally influences...
New Links in the Production Chain
The form grinding process has dramatically increased the efficiency of gear grinding machines, and consequently the productivity of gear shops. New tools and advanced...
Workholding Made Simple
In the past, generations lived from cradle to grave with little noticeable difference in lifestyle. Today, as you well know, we live in a...
Taking Hold with Hydraulics
For over 60 years Hydra-Lock Corporation has been the leader in hydraulic work and tool holding. We are the originators of hydraulic holding and...
A Novel Hob Design for Precision Involute Gears Part I
Abstract
This paper is aimed at the development of a novel design of precision gear hob for the machining of involute gears on a...
