Casting die device and casting method

Patent metadata

Field	Value
Publication number	US-2016339513-A1
Application number	US-201415101119-A
Country	US
Kind code	A1
Filing date	Nov 19, 2014
Priority date	Dec 6, 2013
Publication date	Nov 24, 2016
Grant date	—

Abstract

The present invention relates to a casting die device and a casting method used to obtain a cast product in which an inner bore, at least one end of which is open, is formed. The casting die device has a core pin for forming the inner bore in the cast product, and a vibration-transmitting member for transmitting vibrations from a vibrator of a micro-vibration machine to the core pin. When casting is being performed, vibrations from the vibrator are imparted to the core pin by way of the vibration-transmitting member. The vibrations also propagate to sites surrounding the core pin, in molten metal that has been poured into a cavity.

First claim

1 . A casting die device for obtaining a cast product, an inner bore being formed in the cast product, at least one end of the inner bore being open, the device comprising:
a core pin configured to form the inner bore; a vibration generating unit configured to generate vibrations; and a vibration transmitting member supported by a die that forms a cavity, and configured to transmit the vibrations generated by the vibration generating unit to the core pin, wherein the vibration generating unit includes a vibrating element, and wherein in a state the vibrating element is stopped, the vibrating element is separated from the vibration transmitting member, and in a state the vibrating element is energized, the vibrating element is repeatedly carrying out abutment against and separation from the vibration transmitting member, thereby generating mechanical vibrations.

2 . The casting die device according to claim 1 , wherein the core pin and the vibration transmitting member are constituted as an integral structure made from same material.

3 - 4 . (canceled)

5 . The casting die device according to claim 1 , comprising a high pressure casting die device configured to carry out high pressure casting by applying pressure to molten metal and introducing the molten metal into the cavity.

6 . A casting method for obtaining a cast product, an inner bore being formed in the cast product, at least one end of the inner bore being open, the method comprising the steps of:
forming a cavity, a core pin having entered the cavity for forming an inner bore; introducing molten metal into the cavity; and imparting vibrations generated by a vibration generating unit including a vibrating element to the molten metal in interior of the cavity through the core pin and/or a vibration transmitting member that is supported by a die that forms the cavity, wherein in a state the vibrating element is stopped, the vibrating element is separated from the vibration transmitting member or the core pin, and in a state the vibrating element is energized, the vibrating element is repeatedly carrying out abutment against and separation from the vibration transmitting member or the core pin, thereby generating mechanical vibrations.

7 - 8 . (canceled)

9 . The casting method according to claim 6 , wherein high pressure casting is carried out by applying pressure to the molten metal and introducing the molten metal into the cavity.

Assignees

• Keihin Corp

Inventors

• Uehara Tetsuya
• Sakuma Fumihiro

Classifications

• B22D17/10 Primary

  with horizontal press motion · CPC title

• B22D27/08

  Shaking, vibrating, or turning of moulds · CPC title

• B22D17/24

  Accessories for locating and holding cores or inserts · CPC title

• B22C9/101

  Permanent cores · CPC title