Golf club face plates with internal cell lattices and related methods

1. A golf club head comprising:

a face plate having:

an inner skin;

an outer skin; and

a midsection between the inner skin and outer skin;

an inner midsection end of the midsection is coupled to the inner skin of the face plate;

an outer midsection end of the midsection is coupled to the outer skin of the face plate; and

the midsection comprises a cell lattice with a plurality of walls defining a plurality of cells bounded between the inner skin and the outer skin;

the cell lattice comprises a cell junction where two or more of the plurality of walls couple together; and

the cell junction comprises a first junction channel extending from the inner midsection end to the outer midsection end.

2. The golf club head of claim 1 , wherein:

a first wall of the plurality of walls comprises a transverse passageway between adjacent cells of the plurality of cells.

3. The golf club head of claim 1 , wherein:

the inner skin comprises an inner crystal structure;

the outer skin comprises an outer crystal structure;

the midsection comprises a midsection crystal structure; and

the inner crystal structure and the midsection crystal structure are intermeshed together into a beta-type structure; and

the outer crystal structure and the midsection crystal structure are intermeshed together into a beta-type structure.

4. A method for providing a face plate for a golf club head, the method comprising:

providing an inner skin of the face plate;

providing an outer skin of the face plate;

providing a midsection of the face plate; and

bounding the midsection between the inner skin and the outer skin;

wherein:

providing the inner skin, the outer skin, and the midsection comprises:

providing the midsection, the inner skin, or the outer skin as separate distinct pieces;

providing the midsection comprises:

providing a first midsection layer with a first lattice pattern having at least a first passageway extended from a front surface of the first midsection layer to a rear surface of the first midsection layer;

and

bounding the midsection comprises:

diffusion bonding the inner skin, the midsection, and the outer skin together such that:

a midsection central area of the midsection comprises a cell lattice defined at least in part by the first lattice pattern and comprising a first cell defined by the first passageway and bounded between the inner and outer skins of the face plate.

5. The method of claim 4 , wherein:

providing the inner skin, the outer skin, and the midsection comprises:

providing the midsection, the inner skin, or the outer skin with an alpha-type crystal structure having a hexagonal crystal phase;

and

bounding the midsection comprises:

diffusion bonding the inner skin, the midsection, and the outer skin together such that the alpha-type crystal structure is transformed to a beta-type crystal structure having a body-centered cubic crystal phase intermeshing the midsection, the inner skin, and the outer skin.

6. The method of claim 4 , wherein:

providing the midsection comprises:

providing a second midsection layer with a second lattice pattern having at least a second passageway extended from a front surface of the second midsection layer to a rear surface of the second midsection layer;

bounding the midsection comprises:

aligning the first and second midsection layers such that the first and second passageways are centered about a first cell axis of the first cell; and

diffusion bonding the first and second midsection layers together such that:

the first passageway defines a first volume portion of the first cell; and

the second passageway defines a second volume portion of the first cell.

7. The method of claim 6 , wherein:

providing the inner skin comprises:

providing a plurality of inner skin layers stacked together;

providing the outer skin comprises:

providing a plurality of outer skin layers stacked together;

providing the midsection comprises:

providing a plurality of midsection layers, including the first and second midsection layers, stacked together;

and

diffusion bonding the inner skin, the midsection, and the outer skin together comprises:

diffusion bonding the plurality of inner skin layers, the plurality of outer skin layers, and the plurality of midsection layers together.

8. The method of claim 7 , wherein:

providing the midsection comprises:

providing a quantity of the plurality of midsection layers to be greater than:

a quantity of the plurality of inner skin layers; and

a quantity of the plurality of outer skin layers.

9. A method for providing a face plate for a golf club head, the method comprising:

providing an inner skin of the face plate;

providing an outer skin of the face plate;

providing a midsection of the face plate; and

coupling the midsection between the inner skin and the outer skin such that:

an inner midsection surface of the midsection is coupled to the inner skin of the face plate; and

an outer midsection surface of the midsection is coupled to the outer skin of the face plate;

wherein:

providing the midsection comprises:

providing a cell lattice in the midsection, the cell lattice comprising a plurality of walls defining a plurality of cells;

coupling the midsection comprises:

merging the inner skin, the midsection, and the outer skin together into a single integral piece of material without adhesives or fasteners;

the inner skin comprises:

an inner crystal structure; and

a first material density;

the outer skin comprises:

an outer crystal structure; and

the first material density;

the midsection comprises:

a midsection crystal structure; and

the first material density;

coupling the midsection between the inner skin and the outer skin comprises:

diffusion bonding the inner skin, the midsection, and the outer skin together such that:

the midsection crystal structure is intermeshed with the inner crystal structure; and

the midsection crystal structure is intermeshed with the outer crystal structure.

10. A method for providing a face plate for a golf club head, the method comprising:

providing an inner skin of the face plate;

providing an outer skin of the face plate;

providing a midsection of the face plate; and

coupling the midsection between the inner skin and the outer skin such that:

an inner midsection surface of the midsection is coupled to the inner skin of the face plate; and

an outer midsection surface of the midsection is coupled to the outer skin of the face plate:

wherein:

providing the midsection comprises:

providing a cell lattice in the midsection, the cell lattice comprising a plurality of walls defining a plurality of cells;

coupling the midsection comprises:

merging the inner skin, the midsection, and the outer skin together into a single integral piece of material without adhesives or fasteners; and

the inner skin, the outer skin, and the midsection consist of at least one of:

a titanium 8-1-1 material; or

a titanium 6-4 material.

11. The method of claim 9 , wherein:

the plurality of cells comprise a first cell having a greatest cell width of the plurality of cells;

the greatest cell width is measured substantially parallel to the outer midsection surface; and

providing the midsection comprises:

forming the cell lattice in a midsection central area of the midsection; and

providing a midsection perimeter of the midsection bounding the midsection central area and devoid of the cell lattice,

the midsection perimeter comprising a midsection perimeter width, measured from an outer edge of the midsection to the midsection central area, of at least twice the greatest cell width.

12. The method of claim 9 , wherein:

providing the cell lattice comprises forming one or more of the plurality of cells with at least one of a hexagon shape, a rhombus shape, a straight triangle shape, or a Reuleaux triangle shape.

13. The method of claim 9 , wherein:

providing the cell lattice comprises:

providing cells of a first set of the plurality of cells with a first geometric shape; and

providing cells of a second set of the plurality of cells with a second geometric shape different than the first geometric shape; and

providing the first set of the plurality of cells interspersed with the second set of the plurality of cells.

14. The method of claim 9 , wherein:

providing the cell lattice comprises forming one or more subcells within a first cell of the plurality of cells, the one or more subcells comprising a geometric shape type different than a geometric shape type of the first cell.

15. The method of claim 9 , wherein:

providing the cell lattice comprises forming the plurality of cells in an isogrid pattern.

16. The method of claim 9 , wherein:

providing the cell lattice comprises:

forming a first wall of the plurality of walls to comprise:

a wall width measured substantially parallel to the outer midsection surface; and

a wall thickness measured substantially perpendicular to the outer midsection surface, the wall thickness varying between the inner midsection surface and the outer midsection surface.

17. The method of claim 9 , wherein:

providing the cell lattice comprises forming the plurality of cells in a pattern where a density of the plurality of cells decreases towards a target strike region of the face plate.

18. The method of claim 9 , wherein:

providing the cell lattice comprises forming the plurality of cells in a pattern where a size of the plurality of cells decreases towards a target strike region of the face plate.

19. The method of claim 9 , wherein:

providing the midsection comprises:

providing a plurality of midsection layers comprising:

a first midsection layer; and

a second midsection layer;

providing the cell lattice in the midsection comprises:

forming a first lattice pattern of the cell lattice through the first midsection layer; and

forming a second lattice pattern of the cell lattice through the second midsection layer;

forming the first lattice pattern through the first midsection layer comprises:

forming a first passageway through the first midsection layer, the first passageway defining a first volume portion of a first cell of the plurality of cells;

forming the second lattice pattern through the second midsection layer comprises:

forming a second passageway through the second midsection layer, the second passageway defining a second volume portion of the first cell;

and

coupling the midsection between the inner skin and the outer skin comprises:

merging the first midsection layer and the second midsection layer together integrally into a single piece of material.

20. The method of claim 19 , wherein:

forming the second passageway comprises:

forming the second passageway to comprise a different dimension than the first passageway, the different dimension comprising at least one of:

a different radius, a different perimeter length, a different area, or a different volume.

21. The method of claim 9 , wherein:

providing the midsection comprises:

providing a plurality of midsection layers comprising:

a first midsection layer; and

a second midsection layer;

providing the cell lattice in the midsection comprises:

forming a first lattice pattern of the cell lattice through the first midsection layer; and

forming a second lattice pattern of the cell lattice through the second midsection layer;

forming the first lattice pattern through the first midsection layer comprises:

forming a first passageway through the first midsection layer, the first passageway defining a first volume portion of a first cell of the plurality of cells;

forming the second lattice pattern through the second midsection layer comprises:

forming a second passageway through the second midsection layer, the second passageway defining a second volume portion of a second cell of the plurality of cells;

and

coupling the midsection between the inner skin and the outer skin comprises:

coupling the first and second midsection layers together such that:

the first cell is closer to the inner skin than the second cell;

the second cell is closer to the outer skin than the first cell; and

the first and second cells are offset relative to each other such that:

the second cell is at least partially capped by a solid portion of the first midsection layer; and

the first cell is at least partially capped by a solid portion of the second midsection layer.