Golf club heads and methods to manufacture golf club heads
Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head includes a front portion. A face portion is coupled to the front portion. The face portion includes a central strike portion and a perimeter. A plurality of projections extend from the face portion to provide a ball striking surface for impacting a golf ball. Each projection is defined by a plurality of grooves intersecting one another within the face portion. The plurality of projections are each defined by an area ratio between a base portion area and a peak portion area. The area ratios of the plurality of projections decrease from the central strike portion to the perimeter of the face portion. Other examples may be described and claimed.
1. A golf club head comprising:
a body portion including a front portion; and
a face portion located at or proximate to the front portion and defining a striking surface, the face portion comprising:
a perimeter defined by a toe edge, a heel edge, a top edge, and a sole edge;
a central strike portion located inside the perimeter;
a plurality of first grooves, each groove of the plurality of first grooves being linear and extending diagonally on the face portion;
a plurality of second grooves, each groove of the plurality of second grooves being linear and extending diagonally on the face portion, the plurality of second grooves being oriented transverse to the plurality of first grooves; and
a plurality of projections on the face portion, each projection of the plurality of projections defined by a pair of adjacent grooves of the plurality of first grooves intersecting a pair of adjacent grooves of the plurality of second grooves,
wherein each one of the plurality of projections has a respective base portion area and a peak portion area,
wherein each one of the plurality of projections defines an area ratio between the base portion area and the peak portion area,
wherein the plurality of projections includes a first projection positioned a first distance from the central strike portion and a second projection positioned a second distance from the central strike portion, the first distance less than the second distance, and
wherein the area ratio of the first projection is greater than the area ratio of the second projection.
2. A golf club head as recited in claim 1 , wherein the first projection and the second projection each intersect a horizontal centerline axis of the face portion.
3. A golf club head as recited in claim 1 , wherein the first projection and the second projection each intersect a vertical centerline axis of the face portion.
4. A golf club head as recited in claim 1 , wherein each groove of the plurality of first grooves is manufactured by cutting a groove on the face portion at a fixed depth or a substantially fixed depth.
5. A golf club head as recited in claim 1 , wherein the plurality of first grooves have a same depth or a substantially same depth, and wherein the plurality of second grooves have a same depth or a substantially same depth.
6. A golf club head as recited in claim 1 , wherein the plurality of first grooves have a same width or a substantially same width, and wherein the plurality of second grooves have a same width or a substantially same width.
7. A golf club head as recited in claim 1 , wherein the face portion is configured as an insert operably coupled to the body portion, wherein each projection of the plurality of projections has a peak portion surface defining a portion of the striking surface, and wherein a common plane defined along each of the peak portion surfaces is non-parallel to a back portion of the face portion.
8. A golf club head comprising:
a body portion including a front portion; and
a face portion located at or proximate to the front portion and defining a striking surface, the face portion comprising:
a perimeter defined by a toe edge, a heel edge, a top edge, and a sole edge;
a central strike portion located inside the perimeter;
a plurality of first grooves, each groove of the plurality of first grooves extending linearly along the face portion;
a plurality of second grooves, each groove of the plurality of second grooves extending linearly along the face portion, the plurality of second grooves being oriented transverse to the plurality of first grooves; and
a first projection on the face portion and defined by a pair of adjacent grooves of the plurality of first grooves intersecting a pair of adjacent grooves of the plurality of second grooves, the first projection having a first base portion area and a first peak portion area, wherein a first area ratio is defined between the first base portion area and the first peak portion area;
a second projection on the face portion and defined by a pair of adjacent grooves of the plurality of first grooves intersecting a pair of adjacent grooves of the plurality of second grooves, the second projection having a second base portion area and a second peak portion area, wherein a second area ratio is defined between the second base portion area and the second peak portion area; and
a third projection on the face portion and defined by a pair of adjacent grooves of the plurality of first grooves intersecting a pair of adjacent grooves of the plurality of second grooves, the third projection having a third base portion area and a third peak portion area, wherein a third area ratio is defined between the third base portion area and the third peak portion area,
wherein each of the first projection and the second projection is aligned along a horizontal centerline axis of the face portion and positioned on opposing sides of the central strike portion of the face portion,
wherein the third projection is aligned along the horizontal centerline axis of the face portion and between the first projection and the second projection, and
wherein the third area ratio is greater than the first area ratio and the second area ratio.
9. A golf club head as recited in claim 8 , wherein the first projection and the second projection are positioned equidistant to the central strike portion of the face portion, and wherein the first area ratio is equal to the second area ratio.
10. A golf club head as recited in claim 8 , wherein the first projection, the second projection, and the third projection each have a peak portion having a plurality of peak portion sides defining a peak portion surface configured to strike a golf ball, and wherein the peak portion surface of each of the first projection, the second projection, and the third projection is coplanar with one another along a common plane.
11. A golf club head as recited in claim 10 , wherein the face portion is configured as an insert operably coupled to the body portion, and wherein the common plane is non-parallel to a back portion of the face portion.
12. A golf club head as recited in claim 8 , wherein the first projection comprises a first base portion defining the first base portion area, the second projection comprises a second base portion defining the second base portion area, the third projection comprises a third base portion defining the third base portion area, and wherein a width of each of the first base portion, the second base portion, and the third base portion is greater than the width of the plurality of first grooves and the plurality of second grooves.
13. A golf club head as recited in claim 8 , wherein the plurality of first grooves have a same depth or a substantially same depth and a same width or a substantially same width.
14. A golf club head as recited in claim 8 , wherein the plurality of second grooves have a same depth or a substantially same depth and a same width or a substantially same width.
15. A golf club head comprising:
a body portion including a front portion; and
a face portion located at or proximate to the front portion and defining a striking surface, the face portion comprising:
a perimeter defined by a toe edge, a heel edge, a top edge, and a sole edge;
a central strike portion located inside the perimeter;
a plurality of first grooves, each groove of the plurality of first grooves extending diagonally on the face portion;
a plurality of second grooves, each groove of the plurality of second grooves extending diagonally on the face portion, the plurality of second grooves being oriented transverse to the plurality of first grooves; and
a plurality of projections on the face portion, each projection of the plurality of projections defined by a pair of adjacent grooves of the plurality of first grooves intersecting a pair of adjacent grooves of the plurality of second grooves,
wherein each one of the plurality of projections has a respective base portion area and a peak portion area,
wherein each one of the plurality of projections defines an area ratio between the base portion area and the peak portion area, and
wherein the respective area ratio of each of the plurality of projections decreases in any direction moving from the central strike portion to the perimeter.
16. A golf club head as recited in claim 15 , wherein each projection of the plurality of projections comprising:
a base portion defining the base portion area;
a peak portion having a plurality of peak portion sides defining a peak portion surface configured to strike a golf ball; and
a height defined by a distance between the base portion and the peak portion.
17. A golf club head as recited in claim 15 , wherein the plurality of first grooves and the plurality of second grooves each have a respective lowermost width and an uppermost with, and wherein the uppermost width is greater than the lowermost width.
18. A golf club head as recited in claim 15 , wherein at least one of the plurality of projections is manufactured by cutting a pair of spaced apart first grooves and a pair of spaced apart second grooves intersecting the pair of first grooves on the face portion at a same depth or a substantially same depth.
19. A golf club head as recited in claim 15 , wherein each one of the plurality of projections has a peak portion having a plurality of peak portion sides defining a peak portion surface configured to strike a golf ball, and wherein the peak portion surface of each one of the plurality of projections is coplanar with one another along a common plane.
20. A golf club head as recited in claim 19 , wherein the face portion is configured as an insert operably coupled to the body portion, and wherein the common plane is non-parallel to a back portion of the face portion.