EP 3326734 B1 20190807 - METHOD FOR PRODUCING A FOUNDRY CERAMIC CORE
Title (en)
METHOD FOR PRODUCING A FOUNDRY CERAMIC CORE
Title (de)
HERSTELLUNGSVERFAHREN EINES KERAMISCHEN GUSSKERNS
Title (fr)
PROCEDE DE FABRICATION D'UN NOYAU CERAMIQUE DE FONDERIE
Publication
Application
Priority
FR 1661623 A 20161129
Abstract (en)
[origin: US2018147622A1] A production method for a ceramic casting core (20) in which one manufactures the core (20) by machining by mechanical removal of material from a fired ceramic material block (1), the machining operation comprising at least a first machining step to realize a first machined surface (6, 7) in the material block (1), and a second machining step to realize a second machined surface (9) in the material block (1), substantially opposite to the first machined surface (6). Prior to the second machining step, applying a reinforcement layer (8), made of a stiffening solution to protect the material block (1) from breaking during the second machining step, on at least part or the entire first machined surface (6, 7).
IPC 8 full level
CPC (source: EP US)
B22C 9/04 (2013.01 - EP US); B22C 9/10 (2013.01 - EP US); B22C 9/12 (2013.01 - EP US); B22C 9/18 (2013.01 - EP)
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 3326734 A1 20180530; EP 3326734 B1 20190807; FR 3059259 A1 20180601; FR 3059259 B1 20190510; US 10758969 B2 20200901; US 2018147622 A1 20180531
DOCDB simple family (application)
EP 17202768 A 20171121; FR 1661623 A 20161129; US 201715820652 A 20171122