BONDCASTING PROCESS USING INVESTMENT AND SAND CASTING

(19)

(11)

EP 3 059 030 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	30.11.2016 Bulletin 2016/48

(43)	Date of publication A2:
	24.08.2016 Bulletin 2016/34

(21)	Application number: 16153301.3

(22)	Date of filing: 29.01.2016

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International Patent Classification (IPC):

B22D 19/02^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	MA MD

(30)

Priority:

30.01.2015 US 201514610169

(71)	Applicant: United Technologies Corporation
	Farmington, CT 06032 (US)

(72)	Inventor:
	WHITE, Mark A. Palm City, FL Florida 34990 (US)

(74)	Representative: Iceton, Greg James
	Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)

(54)	BONDCASTING PROCESS USING INVESTMENT AND SAND CASTING

(57) A method of forming a component having a plurality of parts constructed from at least two different materials includes forming a first part made from a first material, placing a sandcasting pattern in a sand molding box, filling the sand molding box with sand, removing the sandcasting pattern from the sand molding box, placing the first part in a first portion of a void in the sand with the void formed by the removal of the sandcasting pattern, filling a remaining area of the void with a second material, and allowing the second material to solidify to form a second part.

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