US 12,280,422 B2
Conformal cooling insert
Randy S. Beals, Grand Ledge, MI (US)
Assigned to MAGNA INTERNATIONAL INC., Aurora (CA)
Appl. No. 18/284,641
Filed by Randy S. Beals, Grand Ledge, MI (US)
PCT Filed Apr. 1, 2022, PCT No. PCT/US2022/023038
§ 371(c)(1), (2) Date Sep. 28, 2023,
PCT Pub. No. WO2022/212834, PCT Pub. Date Oct. 6, 2022.
Claims priority of provisional application 63/169,618, filed on Apr. 1, 2021.
Prior Publication US 2024/0173767 A1, May 30, 2024
Int. Cl. B22D 17/22 (2006.01); B22C 9/06 (2006.01); B22D 15/04 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01)
CPC B22D 17/2218 (2013.01) [B22C 9/061 (2013.01); B22C 9/065 (2013.01); B22D 15/04 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A cooling insert for a die, comprising:
a steel material including chromium (Cr) in an amount of 4.75-5.50 weight percent (wt. %), molybdenum (Mo) in an amount of 1.10-1.75 wt. %, silicon (Si) in an amount of 0.80-1.20 wt. %, vanadium (V) in an amount of 0.80-1.20 wt. %, carbon (C) in an amount of 0.32-0.45 wt. %, manganese (Mn) in an amount of 0.20-0.50 wt. %, phosphorous in an amount up to 0.03 wt. %, sulfur in an amount up to 0.03 wt. %, and impurities in an amount up to 0.2 wt. %, based on the total weight of said steel material;
said steel material including at least one cooling channel;
said steel material having a hardness of 380 to 480 HV10 and a yield strength of 900 to 1300 MPa, and
wherein said steel material presents a surface, one cooling channel of said at least one cooling channel has a diameter and is located a distance from said surface equal to 1.5 times to 1.8 times said diameter of said cooling channel.