US 11,938,659 B2
Insert to reduce weld line appearance defect in injection molding
Jeffrey Kloberdanz, Royal Oak, MI (US); and Liying Qi, Troy, MI (US)
Assigned to Ford Motor Company, Dearborn, MI (US)
Filed by Ford Motor Company, Dearborn, MI (US)
Filed on Sep. 21, 2020, as Appl. No. 17/027,054.
Application 17/027,054 is a division of application No. 15/469,490, filed on Mar. 25, 2017.
Prior Publication US 2021/0069950 A1, Mar. 11, 2021
Int. Cl. B29C 45/00 (2006.01); B29C 45/14 (2006.01); B29K 105/00 (2006.01); B29K 105/06 (2006.01)
CPC B29C 45/0025 (2013.01) [B29C 45/14065 (2013.01); B29K 2105/0067 (2013.01); B29K 2105/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of forming a part comprising:
locating an insert at an angle within a mold cavity;
sending a quantity of molten resin through the mold cavity to form a first melt front; and
sending another quantity of molten resin through the mold cavity to form a second melt front,
wherein the first melt front meets the second melt front at a weld line and each front flows along opposite sides of the insert,
wherein the mold cavity includes a first opposed internal flat surface and a second opposed internal flat surface,
wherein the insert includes a first end that engages the first opposed internal flat surface and a second end that engages the second opposed internal flat surface.