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Method for producing an automotive friction material with optimized multi dimensional construction

Inactive Publication Date: 2020-01-23
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present disclosure is about improving the production of friction materials used in motor vehicles. The technical effect is to create new and better methods for depositing fibrous material, resin, and additives onto clutch disks and synchronizers in a way that more accurately controls their distribution and decreases manufacturing costs. This is necessary because the complexity of transmissions and transmission components has increased, and traditional methods are not always effective in providing the required properties for optimal performance.

Problems solved by technology

Moreover, the complexity of the transmission and of transmission components has increased.

Method used

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  • Method for producing an automotive friction material with optimized multi dimensional construction
  • Method for producing an automotive friction material with optimized multi dimensional construction
  • Method for producing an automotive friction material with optimized multi dimensional construction

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Embodiment Construction

[0036]The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses.

[0037]Friction-disc clutch mechanisms are commonly used at a variety of locations throughout a motor vehicle's powertrain to transfer motive power between a driving shaft and a driven shaft. The operation of such clutch mechanisms generally includes pressing together a pair of opposed clutch plates in which one plate has a high-friction contact surface and the other plate has a relatively smooth contact surface. The forceful engagement between the high friction plate and the smooth plate interlocks the plates together and causes both plates to rotate in unison to achieve a desired power transfer. Under certain clutch operating conditions, however, the constant engagement and disengagement of the plates can be approximated by a stick-slip phenomenon in which the plates skid against one another as opposed to cleanly and crisply engaging and disengagin...

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Abstract

A method for producing an automotive friction material with optimized multi-dimensional construction includes receiving a base friction-disc material, cutting the base friction-disc material to a predetermined size and shape, assembling the sized and shaped cut base friction-disc material, bonding the base friction-disc material to a base friction plate, and utilizing a multi nozzle printing array to deposit friction enhancing materials overtop a reaction surface of the base friction-disc material.

Description

INTRODUCTION[0001]The statements in this section merely provide background information relating to the present disclosure, and may not constitute prior art.[0002]The present disclosure relates to motor vehicles, and more specifically to methods of producing friction materials used in motor vehicle transmission components. Friction materials are used in a variety of locations within motor vehicles, and in particular in transmission components such as clutches, synchronizers, torque converter clutches, and multi-plate clutch packs. Each of the clutch disks and / or synchronizers used in a motor vehicle transmission is typically constructed of fibrous materials, some form of resinous material, and additives. The quantities and proportions of the additives can be used to modify wear, friction, and thermal properties of the clutch disks and / or synchronizers, depending on the application for which the clutch disks and / or synchronizers are designed. As transmission technologies have advanced...

Claims

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Application Information

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IPC IPC(8): F16D13/64B05D7/24B05D1/02D06N3/00D06M23/16D06M23/08C09J5/00
CPCB05D7/24F16D2250/0069C09J5/00D06N3/0006D06M23/08F16D2250/0046D06N2201/087D06N2209/106B05D1/02F16D13/64F16D2250/0023D06M23/16D06M2101/40B32B37/1284B32B38/00B32B38/0004B32B38/145F16D2200/006F16D2200/0078F16D2200/0091
Inventor WEETER, GREG A.ANGUISH, TIMOTHY M.
Owner GM GLOBAL TECH OPERATIONS LLC
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