“Melt and solidify” casting

“Melt and solidify” casting

Gravity casting

High-mix low-volume to mass production

High-mix low-volume to mass production using 60 original “gravity casting” lines

Production Information

Maximum size 400×400mm
Thinnest Mold casting: 3.5 mm
Sand casting: 2 mm
Mold casting 3.5 mm
Applied Materials Mass-produced Products: AC2A, AC2B, AC4A
Small-lot/Prototype Products: AC4B, AC4C, AC4CH, AC7A, AC8A, AC8B
Other Special Materials
Lot size 1 to tens of thousands

*It depends on the product. Please feel free to contact us even if it is not listed above!

YOSHIDA's gravity casting

This is what’s amazing
YOSHIDA’s gravity casting

  1. The prefecture’s largest gravity casting line with over 60 machines
  2. Fastest delivery time: 5 days!
  3. Starting from 1 unit! Mass production line with a maximum of 100,000 units per month
  4. We will take on the challenge of difficult shapes such as “hollow,” “thin-walled,” “thick-walled,” and “complex”!
  5. Wooden molds, sand molds, and metal molds are all OK!
  6. High-quality casting without voids or pinholes
  7. Increased production efficiency with the introduction of robots
  • YOSHIDA's gravity casting
  • グラビYOSHIDA's gravity castingティ鋳造02
  • YOSHIDA's gravity casting

Robots are also employed at Yoshida.

By introducing robots, we are working to improve production efficiency through automation and 24-hour operation.

  • YOSHIDA's gravity casting
  • YOSHIDA's gravity casting
  • YOSHIDA's gravity casting

casting process

Melting

1

Melting

Aluminum ingots are melted in a melting furnace (melting). Degassing is performed to increase the cleanliness of the molten metal, preventing defects caused by the occurrence of voids and pinholes after casting.

Casting

2

Casting

Castings are produced using the gravity casting method, in which molten aluminum is poured into a mold.
Gravity casting produces finer crystal grains because it involves less gas and has a faster cooling rate. This results in castings with high strength and hardness, and is often used for important parts in automobiles and industrial machinery.

Heat treatment

3

Heat treatment

We have 19 heat treatment furnaces, and can provide consistent heat treatment (T6 treatment) after casting.
We determine heat treatment conditions according to the specifications required by our customers, and improve the mechanical properties of aluminum castings with a thorough management system.

削る

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Cutting

Cutting and Grinding Processes