Methods of forming and repairing earth-boring tools including replaceable cutting structures

A method of forming an earth-boring tool, comprising:

• positioning an annular attachment member of a replaceable cutting structure in a mold configured to form a body of an earth-boring tool at a portion of the mold configured to form a region of the body that is susceptible to localized wear, the replaceable cutting structure comprising a cutting portion located to engage an earth formation;
• and
• forming the body around the attachment member of the replaceable cutting structure within the mold, the replaceable cutting structure being located on each blade of a plurality of blades at least within a shoulder region a face of the body, wherein an exposed surface of the replaceable cutting structure is at least substantially flush with exposed surfaces of the body adjacent to the replaceable cutting structure, and wherein the attachment member extends contiguously around a circumference of the face of the body at least within the shoulder region.

A method of repairing an earth-boring tool, comprising:

• bringing a replaceable cutting structure proximate each blade of a plurality of blades at least within a shoulder region of a face of a body of an earth-boring tool exhibiting at least one of localized wear and localized impact damage, the replaceable cutting structure comprising an annular attachment member exhibiting a geometry cooperative with the body and each blade, and a cutting portion located to engage an earth formation, wherein an exposed surface of the attachment member is at least substantially flush with exposed surfaces of the body adjacent to the attachment member, and wherein the attachment member extends contiguously around a circumference of the face of the body at least within the shoulder region;
• and
• attaching the replaceable cutting structure to each blade.