Quality and Production Control
The ideas that "Quality is made during the process" and "Defects should not be sent to the following process" are the basic principles of the process-based quality control system in Aoyama Seisakusho.
Fool-proof devices placed in every location and reliable eyes of the operator support the quality of Aoyama Seisakusho.
This process is to size wire rods purchased from a steel manufacturer suited for product manufacturing.
We strictly inspect the material of all wire rods.
This test checks material components
This test checks material strength
This process is to form the head and body of a bolt from a wire rod.
We control the quality using fool-proof devices and every sort of quality check.
Die defect detector
The detector detects a poor shape accompanied by a die defect
Head percussion test
The test checks the strength of the body of the bolt.
This process is to make threads on the body made during the heading process.
We install a washer for the bolt with the washer.
We maintain quality control similar to that of the heading process.
Washer defect detector
The detector prevents bolts without a washer from being sent to the following process.
We check the accuracy of screws
This process is to make the bolt have specified strength by quenching and tempering it.
The strength is one of the important properties and we carry out the hardness test for all lots.
The test checks the hardness of the surface and the inside.
The treatment time, furnace atmosphere, and temperature conditions are computer-controlled.
This process is to plate the bolt.
To satisfy the specified anti-rust performance, we define the best plating conditions for each product and control the conditions automatically.
Condition entry using A-PICS Kanban
The system automatically sets treatment conditions via the barcode.
The test evaluates anti-corrosion performance with SST/CCT test
This process is to ship products to a customer.
To deliver correct products in necessary quantities by the delivery date, we check every box of products.
Automatic warehousing device
This is computer-controlled warehousing
To prevent wrong products, the system automatically collates the customer's Kanban with A-PICS's Kanban.
all over the world
Reliable products produced under the process-based quality control system in Aoyama Seisakusho
provide safety and reliability for drivers all over the world as a part of the vehicle.