Press forming method for a semi-solid metal material and press forming system for a semi-solid metal material

Patent metadata

Field	Value
Publication number	US-9889494-B2
Application number	US-201514667344-A
Country	US
Kind code	B2
Filing date	Mar 24, 2015
Priority date	Mar 31, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

Provided is a press forming method for a semi-solid metal material, including: manufacturing a semi-solid metal material in a container having an upward opening by injecting molten metal into the container, and cooling the molten metal while stirring the molten metal; inverting the container and storing the semi-solid metal material in a temporary storage space; discharging a liquid phase part from the semi-solid metal material through the inverting; and pressing the semi-solid metal material by feeding the semi-solid metal material, from which the liquid phase part is discharged, into dies of a pressing machine.

First claim

What is claimed is:

1. A press forming system for a semi-solid metal material, comprising:
a semi-solid metal material manufacturing device for manufacturing a semi-solid metal material in a container having an upward opening by injecting molten metal of a metal material into the container, and cooling the injected molten metal while electromagnetically stirring the injected molten metal with a stirring device;
a semi-solid metal material inverting device having a robot arm to hold the container containing the semi-solid metal material, and invert the container to place the container in a temporary storage space;
a liquid phase part discharging device including a table with an opening through which a liquid phase part is discharged from the semi-solid metal material, the container being held by the robot arm; and
a pressing machine for pressing the semi-solid metal material by feeding, into dies, the semi-solid metal material from which the liquid phase part is discharged, wherein
the semi-solid metal material inverting device is configured to:
place the table on an upper end side of the container containing the semi-solid metal material in the semi-solid metal material manufacturing device; and
invert the container together with the table and place the inverted container in the temporary storage space through the table, placing the semi-solid metal material on the table, and

when the container is inverted, the opening of the table allows the liquid phase part of the semi-solid metal material to be discharged from the container.

2. The press forming system for a semi-solid metal material according to claim 1 , further comprising a device for cooling, when the semi-solid metal material manufacturing device manufactures the semi-solid metal material in the container, the semi-solid metal material under a state in which a cooling cover is held in contact with an upper surface side of the semi-solid metal material, and retracting the cooling cover after the cooling for a predetermined period of time.

3. The press forming system for a semi-solid metal material according to claim 2 , wherein the cooling cover is placed in contact with the upper surface of the semi-solid metal material so as to cool at least a vicinity of a radial center portion on the upper surface side of the semi-solid metal material.

Assignees

• Aida Eng Ltd
• Aida Eng Ltd

Inventors

• Nakamura Seiji
• Abe Yuji
• Toda Setsuo

Classifications

• B22D17/007

  Semi-solid pressure die casting · CPC title

• B21J1/06

  Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations {(B21J5/063 takes precedence)} · CPC title

• B21J5/004 Primary

  Thixotropic process, i.e. forging at semi-solid state · CPC title

• B22D7/00

  Casting ingots, {e.g. from ferrous metals}(equipment for conveying molten metal B22D35/00) · CPC title

• B22D27/02

  Use of electric or magnetic effects {(for continuous casting B22D11/015, B22D11/11)} · CPC title