Methods of making a deflection member

Patent metadata

Field	Value
Publication number	US-2024066789-A1
Application number	US-202318506162-A
Country	US
Kind code	A1
Filing date	Nov 10, 2023
Priority date	May 31, 2019
Publication date	Feb 29, 2024
Grant date	—

Abstract

A method for manufacturing a deflection member is disclosed. The method may include the steps of providing an additive manufacturing apparatus that includes at least one and/or two radiation sources and photopolymer resin, providing a reinforcing member, contacting a surface of the reinforcing member with the photopolymer resin, and directing radiation from the radiation source(s) towards a surface of the reinforcing member to at least partially cure photopolymer resin in contact with the surface of the reinforcing member.

First claim

What is claimed is:

1 . A method for manufacturing a deflection member, the method comprising the steps of:
a.) providing an additive manufacturing apparatus that comprises at least one upper radiation source, at least one lower radiation source, and photopolymer resin; b.) providing a reinforcing member having an upper surface and a lower surface opposite the upper surface; c.) submerging the reinforcing member into the photopolymer resin such that at least one of the lower and upper surfaces of the reinforcing member faces at least one of the lower and upper radiation sources; and d.) directing radiation from the at least one of the lower and upper radiation sources toward at least one of the lower and upper surfaces of the reinforcing member to the cure at least a portion of the photopolymer resin to form at least a portion of a lock-on layer.

2 . The method of claim 1 , wherein step d) further includes curing photopolymer resin in contact with the reinforcing member to create at least a portion of a build layer.

3 . The method of claim 1 , wherein radiation is directed from the lower radiation source toward the lower surface of the reinforcing member to cure photopolymer resin.

4 . The method of claim 1 , wherein radiation is directed from the upper radiation source toward the upper surface of the reinforcing member to cure photopolymer resin.

5 . The method of claim 1 , wherein the photopolymer resin is in a vat.

6 . The method of claim 1 , wherein the additive manufacturing apparatus is an SLA apparatus or a CLIP apparatus.

7 . The method of claim 2 , wherein the build layer and the lock-on layer are simultaneously formed.

8 . The method of claim 7 , further comprising the step of directing supplemental radiation towards the deflection member to further cure at least one of the lock-on layer and the build layer.

9 . The method of claim 1 , wherein the reinforcing member comprises foramina, the foramina each having at least one sidewall surface located between the first surface and the second surface of the reinforcing member.

10 . The method of claim 9 , further comprising the step of directing radiation from at least one of the at least one upper radiation source and the at least one lower radiation source to cure photopolymer resin in contact with the sidewall surfaces of at least some of the foramina.

11 . The method of claim 1 , wherein the reinforcing member comprises woven filaments and voids between the woven filaments, each void having at least four side surfaces located between the first surface and the second surface of the reinforcing member.

12 . The method of claim 11 , further comprising the steps of contacting at least one of the side surfaces of at least some of the voids with the photopolymer resin and directing radiation from the at least one radiation source to cure photopolymer resin in contact with the at least one side surface.

13 . The method of claim 2 , further comprising forming a resinous framework.

14 . The method of claim 1 , further comprising directing radiation from the lower radiation source at a first frequency and from the upper radiation source at a second frequency, wherein the first and second frequencies are different.

15 . The method of claim 14 , wherein the second radiation source inhibits curing.

16 . The method of claim 1 , further comprising directing radiation from the lower radiation source at a first wavelength and from the upper radiation source at a second wavelength, wherein the first and second wavelengths are different.

17 . The method of claim 16 , wherein the second radiation source inhibits curing.

18 . The method of claim 14 , further comprising a third radiation source, wherein the third radiation source emits radiation at a third frequency, wherein the third frequency is different from the first and second frequencies.

19 . The method of claim 16 , further comprising a third radiation source, wherein the third radiation source emits radiation at a third wavelength, wherein the third wavelength is different from the first and second wavelengths.

Assignees

• Procter & Gamble

Inventors

• Brent Jr John Leslie

Classifications

• B29C64/124 Primary

  using layers of liquid which are selectively solidified · CPC title

• B29C64/129

  characterised by the energy source therefor, e.g. by global irradiation combined with a mask · CPC title

• B29C64/277

  using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] · CPC title

• B29C64/321

  Feeding · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title