Abstract: Disclosed is a PCD milling cutter for lens processing. The PCD milling cutter includes a shaft having one axial end portion rotatably coupled with a driving unit of a milling unit for lens processing, a rotary head coupled with the axial end portion of the shaft and having a plurality of installation protrusions which protrude outward along a circumference thereof about a rotation center and have outer circumferential surfaces rounded in an axial direction of the shaft, and a plurality of PCD tips coupled with installation surfaces of the installation protrusions positioned in a rotation direction, provided at outer end portions thereof with rounded cutting blades sharply processed in the axial direction of the shaft, and provided in inner end portions thereof, which are opposite to the cutting blades, with cutting grooves formed in a concave shape to increase a welding force.

Abstract: Disclosed is a PCD milling cutter for lens processing. The PCD milling cutter includes a shaft having one axial end portion rotatably coupled with a driving unit of a milling unit for lens processing, a rotary head coupled with the axial end portion of the shaft and having a plurality of installation protrusions which protrude outward along a circumference thereof about a rotation center and have outer circumferential surfaces rounded in an axial direction of the shaft, and a plurality of PCD tips coupled with installation surfaces of the installation protrusions positioned in a rotation direction, provided at outer end portions thereof with rounded cutting blades sharply processed in the axial direction of the shaft, and provided in inner end portions thereof, which are opposite to the cutting blades, with cutting grooves formed in a concave shape to increase a welding force.

Abstract: Disclosed is a method of manufacturing an endmill tool, including detecting a crystal direction of a selected natural diamond gemstone by inspecting the structure of the diamond gemstone, forming a lower base surface and an upper reference surface of the diamond gemstone by using abrading equipment after welding the diamond gemstone with a first sub-body, grinding an edge portion of the diamond gemstone by using grinding equipment after welding a machining tip, which is separated from the first sub-body, with a second sub-body to complete the machining tip having a cutting blade, and temporarily installing the machining tip, which is separated from the second sub-body, in a super hard body installed in setting equipment, adjusting an alignment state of the machining tip, and bonding the machining tip with the super hard body by using a normal-temperature bonding agent through a normal-temperature coagulation scheme to complete the endmill tool.