27-08-2016, 04:34 PM
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INTRODUCTION
GKN driveline, the world’s leading manufacturer of automotive driveline
components.
GKN driveline has 22,000 people at 56 facilities in 22 countries working in partnership with vehicle manufacturers to develop driveshaft and geared component technologies for the future.
GKN driveline is the world’s largest producer of constant-velocity joints, which it pioneered for use in automobiles. Its other products include sideshafts, propshafts, power transfer units, differentials, AWD couplings, disconnects, electric rear axles, and electric drive transmissions.
HISTORY
The origin of GKN (Guest, Keen and Nettlefolds)goes back to 1759, and the founding of the Dowlais Ironworks by the industrialists Thomas Lewis and Isaac Wikilinson. It has changed shape and direction many times to hold its place in the engineering industry. The company took part in the railway boom in the early 1800s with its production of iron, then steel in the 1860s and, after the first worldwar, the automotive industry. It was the start of the company globalization. The GKN group had to expand into the automotive industry not only because of the growth of this business, but also to move with these more sophisticated products in the commonwealth – mainland Europe and North America. GKN evolved geographically from its British base in the early nineteenth century to the USA and Western Europe.
COMPANY PROFILE
SYSTEMS:
• CVJ system
• AWD system
• TRANS AXLE solutions
• E-DRIVE systems
RACK DETAILS
SPLINE RACKS:
The spline rolling process were invented by the MICHIGAL TOOL COMPANY in 1954.The tools used for the process, commonly referred to as spline racks, are solid pieces of toothed tool steel designed in such a manner as to cold form the appropriate number of external involute spline teeth on a work piece, typically a shaft.Spline racks can be reformed several times over the course of their life.
The number of regrinds is dependent on several factors, including the pitch,pressure angle, and number of teeth of the spline,severity of damage, and machine parameters.Referring involves sending the used set of spline racks back to the manufacturer where the old form is completely removed and a new rack form is ground in its place.The resulting difference in rack height is made up by means of shim that is installed under the rack when its reinstalled in the customer’s spline rolling machine.
This approach to spline rack tooling created several times with which the user had to be contend.The float of tools had to be managed to ensure there were always racks available when a tool change was required.This involves keeping track of tools out for reform and tracking the logistics of shipping to and from their regrind supplier.Also,due to the fact that it takes roughly twice the time to manufacture new racks as it does to have an existing set reformed, the number of regrinds for each set must be tracked so new tools could be ordered in anticipation of scrappage in the existing float.In an era when most high production facilities predominantly throw away tools, the tracking requirements can be onerous task for plant tool management personnel not used this type of requirement.
The logistics issues became much more acute with the dispersion of manufacturing facilities across the globe.Shipping times that have been measured in days domestically were now were measured in weeks.The paperwork and reporting requirements of dealing with customs further complicates the regrinds process.In response, spline rack users have had to increase the floats to compensate or risk running out of tools.rack manufacturers have had difficulty becoming truly global suppliers without establishing facilities in each market they wish to participate in, a daunting proposition considering the equipment and technical expertise required for each facility.
INTRODUCTION
GKN driveline, the world’s leading manufacturer of automotive driveline
components.
GKN driveline has 22,000 people at 56 facilities in 22 countries working in partnership with vehicle manufacturers to develop driveshaft and geared component technologies for the future.
GKN driveline is the world’s largest producer of constant-velocity joints, which it pioneered for use in automobiles. Its other products include sideshafts, propshafts, power transfer units, differentials, AWD couplings, disconnects, electric rear axles, and electric drive transmissions.
HISTORY
The origin of GKN (Guest, Keen and Nettlefolds)goes back to 1759, and the founding of the Dowlais Ironworks by the industrialists Thomas Lewis and Isaac Wikilinson. It has changed shape and direction many times to hold its place in the engineering industry. The company took part in the railway boom in the early 1800s with its production of iron, then steel in the 1860s and, after the first worldwar, the automotive industry. It was the start of the company globalization. The GKN group had to expand into the automotive industry not only because of the growth of this business, but also to move with these more sophisticated products in the commonwealth – mainland Europe and North America. GKN evolved geographically from its British base in the early nineteenth century to the USA and Western Europe.
COMPANY PROFILE
SYSTEMS:
• CVJ system
• AWD system
• TRANS AXLE solutions
• E-DRIVE systems
RACK DETAILS
SPLINE RACKS:
The spline rolling process were invented by the MICHIGAL TOOL COMPANY in 1954.The tools used for the process, commonly referred to as spline racks, are solid pieces of toothed tool steel designed in such a manner as to cold form the appropriate number of external involute spline teeth on a work piece, typically a shaft.Spline racks can be reformed several times over the course of their life.
The number of regrinds is dependent on several factors, including the pitch,pressure angle, and number of teeth of the spline,severity of damage, and machine parameters.Referring involves sending the used set of spline racks back to the manufacturer where the old form is completely removed and a new rack form is ground in its place.The resulting difference in rack height is made up by means of shim that is installed under the rack when its reinstalled in the customer’s spline rolling machine.
This approach to spline rack tooling created several times with which the user had to be contend.The float of tools had to be managed to ensure there were always racks available when a tool change was required.This involves keeping track of tools out for reform and tracking the logistics of shipping to and from their regrind supplier.Also,due to the fact that it takes roughly twice the time to manufacture new racks as it does to have an existing set reformed, the number of regrinds for each set must be tracked so new tools could be ordered in anticipation of scrappage in the existing float.In an era when most high production facilities predominantly throw away tools, the tracking requirements can be onerous task for plant tool management personnel not used this type of requirement.
The logistics issues became much more acute with the dispersion of manufacturing facilities across the globe.Shipping times that have been measured in days domestically were now were measured in weeks.The paperwork and reporting requirements of dealing with customs further complicates the regrinds process.In response, spline rack users have had to increase the floats to compensate or risk running out of tools.rack manufacturers have had difficulty becoming truly global suppliers without establishing facilities in each market they wish to participate in, a daunting proposition considering the equipment and technical expertise required for each facility.