Discontinuous profile grinding of gears. Discontinuous profile grinding is a gear-grinding process widely used in industrial applications for finishing the tooth flanks of heat-treated gears . If no angle-optimized grinding is used and no modifications are existing, the profile of the grinding wheel generally corresponds to the negative profile ...

While processes like continuous profile grinding and discontinuous generating grinding with double cone discs became less important in the last couple of years, the processes continuous generating ...

12%For discontinuous profile grinding of gears tools are in use, which are profiled relating to the required gear geometry. It is an imaging grinding procedure, whereby the tooth flank as well as the tooth root and ground can be machined . It provides high flexibility in the adjustable gear geometry.

Currently, gears for gear boxes of wind power stations are mainly manufactured by a discontinuous profile grinding of tooth flanks. The teeth are processed discontinuous with a profiled grinding wheel either as two or single flank grinding. Sintered corundum grinding wheels are used for manufacturing of case-hardened gears, which can be dressed ...

A process for the discontinuous profile grinding or milling of gear wheels with wheel-type or shank-type tools which includes setting approximate parameters for the workpiece to be worked by the tool so as to avoid large profile deviations, determining by calculation or trial the profile of the workpiece following work thereon, comparing the work profile with the predetermined profile of the ...

For this purpose, gears with feed-mark depths δx below and above 35 μm were machined and ground by means of discontinuous profile gear grinding afterwards. The influence of the feed marks on the ...

Parts are machined by discontinuous profile grinding. Non-dressable CBN profile grinding wheels are exclusively used, typically in a combination of roughing and finishing tools. HGS. The high-speed grinding machine HGS is mainly used for grinding slots in …

While processes like continuous profile grinding and discontinuous generating grinding with double cone discs became less important in the last couple of years, the processes continuous generating gear grinding, discontinuous profile grinding and honing of tooth flanks gain rising importance. The analyses of the processes include functionality ...

ing and discontinuous profile grinding (Ref.1). Similar to conventional grind - ing processes — e.g., external cylindri-cal grinding or surface grinding—the process design for grinding tooth flanks is based on characteristic values that can be determined for a particular process due …

Discontinuous Profile Grinding. Fig. 6-88 is a schematic representation of profile grinding of an external gear tooth spur gear. The grinding wheel exhibits the profile of the tooth space in transverse section. The grinding wheel profile is transferred to the tooth flank by the depth of cut ae in the radial direction corresponding to the ...

grinding flattens the railhead (1a), as opposed to profile grinding which grinds a specific contour or profile into the railhead (1b). However elimination of the surface defects is usually a preliminary step in profile grinding, if they are present on the railhead. Thus, for rail with surface defects and plastic flow, profile grinding can be a ...

Research of Grinding Burn at Tooth Flank Profile Grinding Nital etching is used in a lot of industrial applications to review a ground gear regarding structural damage caused by grinding burn (Refs. 6, 8). This method shows a positive result if the surface zone of …

Grinding of cutting tools on floor stand grinders and tool grinding machines. Sharpening of drills and milling cutters with tool grinding wheels. Sharpening of saws. Sharpening of blades. Grinding of cutting tools with mounted points. Grinding of templates and stamps with mounted points. Deburring with files.

· When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption • Single rib gear grinding Gear profile grinding is a discontinuous grinding process. Contrary to generation grinding, profile grinding is machined gap by gap. The grinding

Discontinuous profile grinding is usually used for smaller lot size production and also for bigger gears. Therefore, KAPP delivers sintered diamond form rolls which can be in an economic version with natural diamond or in a long life version with handset CVD diamond sticks.

sively for discontinuous profile grinding. A special highlight is the extremely high stock removal capability, which is required for effi-cient grinding of rotor profiles, and which is made possible by the drive power. The machines of the rx series are employed for pre-finish and finish grinding of pre-profiled steel and cast-iron profiles. The ...

In kinematically more complex grinding processes such as discontinuous profile grinding of case hardened gears, an increased risk of grinding burn due to line contact between grinding wheel and workpiece can occur .In industry the discontinuous profile grinding process is used for hard fine machining of gears with module sizes m up to 40 mm .To avoid grinding burn, …

The development of discontinuous profile grinding allowed the complete left flank and right flank profiles to be finished at the same time and has significantly improved the cycle times of grinding. The machine technology is constantly advancing to provide gear manufacturers with the most efficient process possible.

Discontinuous profile grinding - enhanced surfaces with reduced grinding time Due to ever increasing demands on the transmission in terms of noise, freedom from maintenance, reliability, weight and durability, the hard-fine machining process needs to be improved and made quicker and more accurate, despite reducing costs.

Discontinuous profile grinding . Rotor & worm shaft grinding . Spiral bevel gear grinding . Other industries. Turbine manufacture ...

Discontinuous gear profile grinding is com-monly used in the manufacture of large-module gears. And because the batch sizes are typically small to medium, the process must be highly flex-ible. In order to achieve this flexibility, dress-able—rather than CBN-plated—grinding wheels

Guba N, Hüsemann T, Karpuschewski B (2020) Influence of gear hobbing feed marks on the resulting gear quality after discontinuous profile grinding. CIRP J Manuf Sci Technol 31:314–321. Article Google Scholar 7.

The article "Surface Damage Caused by Gear Profile Grinding and its Effects on Flank Load Carrying Capacity" appeared in the September/October 2004 issue of Gear Technology.. Summary Instances of damage to discontinuous form ground and surface-hardened gears, especially of large scale, have recently increased.

Due to the high speeds of the discontinuous profile grinding process, the replacement of the moving source with the unmoving (stationary) one often does not affect the accuracy of determining the profile grinding temperature on the surface and in a thin surface layer.

a profile grinding process. Profile grinding Profiles the exact shape of the gear tooth. The wheel runs between two opposing teeth ... This is known as discontinuous grinding and is used on large contact areas. WheeL seLecTiOn Guide D V V H V V U T Key: 01 = Type d= iameter T = Thickness H = Hole

Single rib gear grinding Higher profile accuracy vs. Generation Grinding . Gear profile grinding is a discontinuous grinding process. Contrary to generation grinding, in profile grinding gap by gap is machined. The grinding wheel profile is absolutely identical with the finished gear profile.

Profile Grinding CERFINE PG Hermes CERFINE PG high-performance tools for discontinuous p rofile g rinding of gears are specially adapted to the high requirements of gear grinding processes.

For discontinuous profile grinding of gears tools are in use, which are profiled relating to the required gear geometry. It is an imaging grinding procedure, whereby the tooth flank as well as the tooth root and ground can be machined . It provides high flexibility in the adjustable gear geometry.

With the present work it was shown that surface layer modification charts for discontinuous profile grinding can be generated using analogy trials carried out on a surface grinding machine for ...

A process for the discontinuous profile grinding or milling of gear wheels with wheel-type or shank-type tools which includes setting approximate parameters for the workpiece to be worked by the tool so as to avoid large profile deviations, determining by calculation or trial the profile of the workpiece following work thereon, comparing the work profile with the predetermined profile of the ...

The method of calculating the profile of the discontinuous surface of the grinding wheel presented in the article makes it possible to determine its geometric parameters taking into account the ...

A contouring tool for grinding cylindrical worm profiles includes two disks 46, 47 having hard grain coated surfaces 48, 49 for contouring the opposing flanks 3, 4 of the grinding worm 1. Hard grain coated parts 50, 52, which are provided for contouring the root and crest sections 5, 6 that directly adjoin the flanks 3 to be dressed with one disk 47, are mounted on the other disk 46.