GrindedGears.COM
Grinding Your Gears
Gear Grinding Leading News
A special website that discusses the gear grinding in a wide variety of science and its applications
-
Comparative Corrosion Characteristics of Ground and Superfinished Gear Steels
Posted on June 17th, 2013 No commentsThe described effort was undertaken to assess the impact of the isotropic superfinishing (ISF®) process on the corrosion resistance of a variety of gear steels. Alloys examined were AISI 9310 VIM VAR, AMS 6308, Pyrowear® 675 (two variations; tempered at 925°F and at 550°F), and CSS-42L TM (tempered at 925°F) with stainless steel 440C, in hardened condition, as a base line. Except for the 440C specimens, all other specimens were sectioned gear teeth. They were ground or superfinished to be line-free at 10X. Various passivation techniques were evaluated and the process adopted utilized 5% citric acid followed by ultrasonic solvent bath cleaning to remove any free iron that may be present on the surface.
-
Analysis of Ripple on Noisy Gears
Posted on May 30th, 2013 No commentsA low noise level is an important quality feature in modern gearboxes for passenger cars. But a troublesome noise can have many causes. The noise origination and transmission is, among others, affected by the design layout, by the actual deviations of the components, by the assembly of the components, and by the mounting situation of the complete gearbox.
-
Saving Time and Cost for Intricate Gear Peening
Posted on May 22nd, 2013 No commentsShot peening is a cold working process used to produce a compressive residual stress layer and modify mechanical properties of metal by impacting a surface using round, bead-like particles with sufficient force to create the required compression deformation. These particles can Be Made of various metals, glass, or ceramics. Using mass and velocity, each particle functions as a tiny ball-peen hammer as it impacts the part and leaves a small indentation on the surface, creating a compressive residual stress layer in the surface of the part.
-
Precision Broaching of Gears Large and Small
Posted on May 6th, 2013 No commentsThe broaching of precision gears will always start with a designed broach to match the specification of the part print. The broach designer will evaluate all the facts such as material, wall thickness, and, most importantly, the class of fit required on the gear. However, even with all the expert knowledge the designer puts into the broach tool to satisfy the specifications, there is no control over how the tool is used.
-
Gear Lubrication-Gear Protection Also At Low Oil Temperature
Posted on April 28th, 2013 No commentsIn practice, industrial gears are often operated with lower oil temperatures than would normally be generated in a fully-loaded gearbox. Lower temperatures prevail, for instance, while a gearbox is being taken back into use after prolonged standstill, i.e. during the time it takes for the oil to heat up from ambient temperature to service temperature.
-
Choosing Gearboxes
Posted on April 14th, 2013 No commentsIn our industry, the issue of what kind of gear to use for which application comes up all the time. It’s frequently hard to choose from spur gears, helical gears, bevel gears, and other options. So it’s always pretty cool when we can come across an article or resource that offers some contribution to that important decision.
-
Advantages of Helical Gears
Posted on April 7th, 2013 No commentsIn the world of precision gear manufacturing, there are often many opportunities to increase efficiency simply by changing one of the elements of your gear production process. Many gear manufacturers don’t realize that there are several instances where a helical gear may be superior to spur gears.
-
Exactly in keeping with set up
Posted on March 31st, 2013 No commentsSurface grinding is one in every of the oldest and most generally used grinding processes. this can be few surprise – so far} there’s still no various out there for manufacturing absolutely sleek surfaces that is smart each technically and from a value point of read. Surface grinding or face grinding techniques square measure divided into:
-
Where Grinding Still Beats laborious Turning
Posted on March 25th, 2013 No commentsAlthough advances in CNC turning centers and cutting tools have created substantial strides in favor of laborious turning over grinding, grinding usually seems to be the higher alternative. That’s the position taken by Rob Titus, senior applications engineer—grinding merchandise at Okuma America corporation. (Charlotte, North Carolina). Okuma is maybe best glorious for its CNC lathes and machining centers. However, the corporate additionally offers a line of cylindrical OD and ID CNC grinders. With these interests in mind, the builder is often needing to realize the most effective method for associate application, whether or not it involves laborious turning or grinding.
-
More Effective Cooling, Lubrication for Grinding
Posted on March 19th, 2013 No commentsNozzles square measure typically wont to offer fluid throughout grinding or machining operations to regulate work temperature, keep the emery wheel or tool clean and open for chip flow, alter extreme pressure additives within the fluid to try to to their job, and flush chips removed from the cutting space. well-liked configurations embrace rigid, bent metal tubes and conformable plastic versions with several joints. Plastic nozzles square measure designed for air mass (approximately thirty psi) and may stray out of position at higher pressure. they’re simple to aim, however ought to be placed near the work as a result of they generate wide, distributed jets that get on air into the fluid stream. Rigid metal tubes square measure stiffer, however they conjointly deliver distributed fluid jets. Re-aiming them needs frequent bending that ultimately results in fracture. Plus, their shut proximity to the tool may result in broken nozzle tips and reduced jet quality.
Recent Comments