Analyzing the Potential of Drill Bits 3D Printed Using the Direct Metal Laser Melting (DMLM) Technology to Drill Holes in Polyamide 6 (PA6)

Abstract

Drilling with standard twist drill bits is the most common method to create cylindrical holes. With the constant development of additive manufacturing technologies and easier access to additive manufacturing equipment, it is now possible to design and fabricate solid tools suitable for various machining applications. Specially designed 3D printed drill bits seem more convenient for standard and nonstandard drilling operations than conventionally made tools. The study described in this article aimed to analyze the performance of a solid twist drill bit made from steel 1.2709 using direct metal laser melting (DMLM), which was compared with that of a drill bit manufactured conventionally. The experiments involved assessing the dimensional and geometric accuracy of the holes made by the two types of drill bits and comparing the forces and torques occurring during the drilling of holes in cast polyamide 6 (PA6).

Effect of shells number and machining on selected properties of 3D-printed PLA samples

“…These technologies first appeared in the second half of the 20 th century, and their rapid development occurred in the early 21 st century. Over this time, they have been implemented in industries as diverse as medicine [2], mechanics [3], engineering, and art and architecture. The main advantage of additive technologies is the ability to use a wide range of materials, such as metals, ceramic powders, polymers, as well as resins and waxes [4].…”