ANCHOR BOLT AND METHOD FOR MAKING SAME
Discloses is an anchor bolt including a stud. The anchor bolt further includes a wedge in operable communication with the stud. The anchor bolt still further includes a heat treated then cold worked sleeve disposed about the stud and in operable communication with the wedge.
1 . An anchor bolt comprising:
a stud;
a wedge in operable communication with the stud; and
a heat treated then cold worked sleeve disposed about the stud and in operable communication with the wedge.
2 . The anchor bolt of claim 1 , wherein the heat treated then cold worked sleeve comprises a low carbon steel.
3 . The anchor bolt of claim 1 , wherein the heat treated then cold worked sleeve comprises a high strength, low alloy steel.
4 . The anchor bolt of claim 1 , wherein hardness of the heat treated then cold worked sleeve is increased due to the heat treating.
5 . The anchor bolt of claim 1 , wherein the heat treated then cold worked sleeve includes at least one longitudinal slot.
6 . The anchor bolt of claim 1 , wherein the heat treated then cold worked sleeve includes at least one gripping projection.
7 . An anchor bolt comprising:
a stud;
a wedge in operable communication with the stud; and
a low carbon steel sleeve disposed about the stud and in operable communication with the wedge.
8 . The anchor bolt of claim 7 , wherein the low carbon steel sleeve is heat treated then cold worked.
9 . The anchor bolt of claim 7 , wherein the low carbon steel sleeve is quenched and tempered then cold worked.
10 . The anchor bolt of claim 7 , wherein the low carbon steel sleeve further comprises a high density low alloy steel.
11 . The anchor bolt of claim 7 , wherein the low carbon steel sleeve includes a longitudinal slot.
12 . The anchor bolt of claim 7 , wherein the low carbon steel sleeve includes a gripping projection.
13 . A method for making an anchor bolt sleeve comprising:
heat treating a steel blank; and
cold working the steel blank into an anchor bolt sleeve subsequent to the heat treating, the anchor bolt sleeve being expandably receptive to a wedge of an anchor bolt.
14 . The method for making an anchor bolt sleeve of claim 13 , further comprising quenching and tempering the steel blank prior to the forming of the steel blank into the sleeve.
15 . The method for machining an anchor bolt sleeve of claim 14 , wherein the quenching and tempering results in hardening of the steel blank to a hardness not to exceed 35 on the Rockwell C hardness scale.
16 . The method for machining an anchor bolt sleeve of claim 13 , wherein the cold working results in hardening of the steel blank to a hardness greater than 35 on the Rockwell C hardness scale.
17 . The method for machining an anchor bolt sleeve of claim 13 , wherein the cold working is a process selected from the group consisting of rolling, drawing, pressing, spinning, extruding and heading.
18 . The method for machining an anchor bolt sleeve of claim 13 , wherein the cold working further includes joining the two adjacent sides of the steel blank along a seam.