Micro-skiving – (r)evolution of a known production process
Production of internally toothed gear wheels is possible in many different ways. Different techniques such as gashing, broaching, wire EDM, […]
Chamfer Hobbing Tools Up
In the last few years, chamfering and deburring have gained new respect and risen to a level of importance equal […]
Advantages of flat broaching machines
A broaching machine requires precision broaching tools to increase productivity and efficiency. New broaching tools can be expensive and difficult […]
Root cause for noise excitation in geometrically-accurate (perfect) parallel-axes gearing
Gears are extensively used to transmit a rotation from a driving shaft to a driven shaft. Depending on the gear […]
Using simulation to evaluate part green shape to reduce distortion during plug quenching
Determining the heat-treatment geometry (green shape) for complex gears is not a trivial task. Mass distribution becomes critical in determining […]
Filling Some Gaps in Spline Design Guidelines: Centering, Friction, and Misalignment
Editor’s note: At the author’s request, some statements have been removed for clarity since the article was originally published in October, […]
Taking deburring to the next level
Once a gear is created, deburring becomes a necessary step to ensure a gear’s accuracy. Traditionally, deburring has been done […]
Lean Heat Treatment for Distortion Control
Controlling distortion is of key importance during the case hardening process for the production of gear components. By effective control […]
Inspection & Metrology: ‘We must never stand still’
Small series and prototype production at ZF Friedrichshafen AG create new challenges for quality control time and again: measurement programs […]
Tooling Workholding: A new solution for bevel gears
The creativity of the designers knows no bounds with new drive element and gear geometries. Faced with constantly increasing demands […]
Online exclusive: How many mils is your coating?
Instantaneous handheld coating thickness gauges that can be operated by virtually any technician deliver lab-quality readings even on curved and […]
Tooling & Workholding: A success story: Low-deformation workpiece clamping
Those who want to turn, mill, or grind rings, flanges, housings, or other thin-walled parts will quickly reach the limits […]
Two-Probe Pitch Inspection Method For Large Gears
A gear’s pitch (a k a index or spacing) accuracy is one of the most fundamental gear characteristics affecting its […]
Chamfer Hobbing, Perfect Timing
New gearbox developments, particularly for eDrives, are creating a whole new set of gear design and manufacturing criteria. Compact gearbox […]
Effects of Asymmetric Cutter Tip Radii on Gear Tooth Root Bending Stress
By Dr. Abdullah Akpolat, Dr. Nihat Yildirim, Burak Sahin, Omer Yildirim, Bulent Karatas, and Fatih Erdogan Tooth root fillet is the […]
Closed Loop Machining of Cylindrical Gears
Leonhard Euler’s 1760 invention of making cylindrical gears with an involute profile was the beginning of a success story. As […]
