Lost ancient machining tools and honoring the master builders of long ago Below are geometric drill holes made in granite along with the tools that shaped the holes. Being able to see these shaped metal tools helps identify the drilling technique. The shaped tools indicate ultrasonic drilling. Ultrasonically machined star and triangle holes with tools. …
ULTRA JEWELRY DESIGN BY JEFFREY APPLING “DARING COMPOSITIONS AND BURST OF COLOR signal the passion that explodes in Jeffrey Appling’s jewelry. With every imaginative piece, he challenges himself to push the boundaries of contemporary fine jewelry forward. Whether his motivation is conceptual or technical in nature, his extraordinary skills as a jeweler allow him to …
Star holes in stone, machine marks, and basic tool making Ultrasonic drilling combined with hard abrasive powder can efficiently bore through any brittle stone or crystal regardless of the material’s toughness or hardness. The technology of ultrasonic drilling is not complicated if you have the knowledge. Those who learn and use ultrasonics to shape stone …
