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JPMA Awards

2013

Development of Oil-impregnated Sintered Bearing for Motor of Idle Speed Control System of Small Motorcycle

Development of Oil-impregnated Sintered Bearing for Motor of Idle Speed Control System of Small Motorcycle
Diamet Corporation
The development for the bearing material which showed sufficient strength when the bearing was pinched and fixed to the motor body and of course keeping slide characteristic and oil retentivity was appraised. In addition, the improvement by the sizing process that could maintain precise dimensions at the time of production and actual mass production results were accepted.

Development of Joint Part for Motor of Electric Power Steering

Development of Joint Part for Motor of Electric Power Steering
Diamet Corporation
Utilizing PM's advantages, the product was pressed to the net shape with weight saving and high strength, so it was a warded a prize. And converted from forged parts to this product indicated the superiority of the PM technology was also judged.

Mass-production of light weight piston with thinner thickness for motor cycle

Mass-production of light weight piston with thinner thickness for motor cycle
FINE SINTER CO., LTD.
As for this parts, complexity having thin walls and concave / convex structure was designed to press the net shape by preparing new die and press technology was admitted. Stabilized ability for decrement of the shock absorber, that contributed to improve the performance of motorcycle was evaluated also.

Development of the Sintered Bearing for Battery Cooling Fan Motor, used for a HEV (Hybrid Electric Vehicle) and EV (Electric Vehicle).

Development of the Sintered Bearing for Battery Cooling Fan Motor, used for a HEV (Hybrid Electric Vehicle) and EV (Electric Vehicle).
Porite Corporation
These bearings achieved the coaxiality to 1 micrometer by optimization of tools and dies, the press accuracy and assembling method at the user's production line was admired. A successful point was accepted switched from a ball-bearing to the sintered bearing in the field of HEV, EV which extension could be expected.

Electric Oil Pump Rotors for Use under Silent Environment

Electric Oil Pump Rotors for Use under Silent Environment
Diamet Corporation
The new tooth profile of the oil pump rotor was carried out and also the original theory that paid attention to the gap between inner and outer rotors to minimize noise problems was established corresponding to the quietness-related demand of the car. It was accredited to award. These rotors are expected to mount on HEV and the idle-stop system widely in the future.

Development of the Parking Component used in the Transmission for PHEV

Development of the Parking Component used in the Transmission for PHEV
Sumitomo Electric Industries, Ltd.
The total length of 50 mm product having a gradient portion in the inside diameter was molded to the net shape. This production technology was worthy of praise. The newly developed transmission for PHEV is equipped with this part and future growth is expected.

Development of the Oil Seal made of Sintered Metal for Variable Valve Timing Device

Development of the Oil Seal made of Sintered Metal for Variable Valve Timing Device
NTN powder metal corporation
The oil seal part used for a device in a variable valve timing was changed from resin product to the PM part was recognized. Simultaneously, improvement of dimensional accuracy and cost performance were estimated.

Development of low cost pure iron based Soft Magnetic Composite Core for automotive reactor

Development of low cost pure iron based Soft Magnetic Composite Core for automotive reactor
Sumitomo Electric Industries, Ltd.
Concerning these parts, the cost reduction by using fine pure iron powder and the improvement of compacting technology was acknowledged. The reactor core made in laminated iron plates was assembled into the booster for the motor drive system of the hybrid car conventionally, but was switched to the green compacts this time. This is the remarkable change.

Development of High-precision Gear used in the Vehicle Attitude Control

Development of High-precision Gear used in the Vehicle Attitude Control
Sumitomo Electric Industries, Ltd.
Admiration point of these PM gears, both pinion gear and ring gear were reached to 3 grade with tooth lead error and 2 grade with tooth profile error.
The manufacturing process of tools and dies for these parts was reviewed to obtain more high precision gears.

The Sinterd Hydrodynamic Bearing for Super Thin Fan Motor

The Sinterd Hydrodynamic Bearing for Super Thin Fan Motor
NTN powder metal corporation
By the optimization of the groove shape on the thin sinterd hydrodynamic bearing and machining process of the groove, this part contributed to realize the thinner fan-motor. In addition, the high sales results were evaluated.

Development of the High Strength and the High Dimensional Accuracy Starter Planetary Gear for Idling Stop System

Development of the High Strength and the High Dimensional Accuracy Starter
Planetary Gear for Idling Stop System
Hitachi Chemical Co., Ltd.
This product satisfied high strength and high precision as the planetary gear. Because this part is put on the idle-stop system, future expansion is expected.