POWDER METAL NET SHAPED ALIGNMENT FEATURE
PROBLEM TO BE SOLVED: To provide improved powder metal component retention features that provide strength and ease of manufacture, with the ability to meet the high torque requirements needed for use in a transmission.SOLUTION: A powder metal component for a transmission includes a body portion 62 d...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide improved powder metal component retention features that provide strength and ease of manufacture, with the ability to meet the high torque requirements needed for use in a transmission.SOLUTION: A powder metal component for a transmission includes a body portion 62 defining a substantially planar major surface, and at least three radially spaced retention features formed in the body portion in a green state, prior to sintering. Each retention feature may include a bore having a shaped geometry extending between an upper region adjacent to the major surface of the body portion, and a lower region defining a radius of curvature. Each bore may be defined by two opposing, substantially parallel sidewalls and a substantially U-shaped bottom portion. The U-shaped bottom portion may include a center region defining the radius of curvature connecting two angled bottom walls.SELECTED DRAWING: Figure 2
【課題】強度と製造の容易性とを実現し、変速機での使用のために必要とされる高いトルク要求基準に合致する能力を有する、改良された粉末金属構成部品の保持機構を提供する。【解決手段】変速機のための粉末金属構成部品は、実質的に平らな主要表面を画定する本体部分62と、焼結前に未焼結状態において本体部分に形成された少なくとも3つの半径方向に互いに間隔が開けられた保持機構とを含む。各保持機構は、本体部分の主要表面に隣接した上部領域と、曲率半径を画定する下部領域との間を延びる、成形構造を有する穴を含んでもよい。各穴は、2つの互いに対向する実質的に平行な側壁と、実質的にU字形の底部部分とによって画定されてもよい。このU字形の底部部分は、2つの傾斜した底部壁を連結する曲率半径を画定する中央領域を含んでもよい。【選択図】図2 |
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