Traditional jewelry manufacturing relies on lost‑wax casting, a subtractive process with inherent geometric constraints—undercuts, internal voids, and variable wall thicknesses are difficult or impossible to achieve. This article presents a comprehensive study of selective laser melting (SLM) as an advanced technology for jewelry manufacturing, specifically applied to a custom‑developed 18K gold alloy (75 wt% Au, 15 wt% Ag, 10 wt% Cu) optimized for laser processability. We report on

Traditional precious metals (gold, platinum, palladium) used in wedding bands and daily-wear jewelry exhibit inherent softness, leading to surface scratching, deformation, and loss of polish over time. This article presents a systematic investigation of refractory metal alloys—specifically iridium‑ruthenium (Ir‑Ru) and osmium‑iridium (Os‑Ir) systems—as advanced materials for high‑durability jewelry manufacturing. We detail the vacuum arc melting process, thermomec

The perceived quality of a jewelry piece depends not only on its bulk material but critically on its surface characteristics—gloss, scratch resistance, tarnish resistance, and tactile feel. This article reviews advanced materials and technologies in jewelry manufacturing that focus on surface engineering and microstructural optimization. We examine three technical pathways: (1) physical vapor deposition (PVD) of hard coatings (TiN, ZrN, and DLC) onto precious metal substrates, (2) grain refinem

Traditional jewelry manufacturing relies on subtractive methods (lost-wax casting, hand engraving, and CNC milling) that limit geometric complexity and material selection. This article examines two converging innovations in advanced materials and technologies in jewelry manufacturing: laser powder bed fusion (LPBF) additive manufacturing for precious metals, and the introduction of high-entropy alloys (HEAs) as a new class of jewelry materials. We analyze the process parameters for LPBF of 18K g

Additive manufacturing is transforming jewelry production from a craft dominated by subtractive and casting methods to a digital, layer-by-layer fabrication paradigm. This article provides a comprehensive technical review of metal additive manufacturing technologies applied to precious metals, with particular focus on laser powder bed fusion (L-PBF) and binder jetting (BJT) processes. The article analyzes the material-specific challenges of processing high-reflectivity precious metals (gold, sil

The jewelry manufacturing industry is undergoing a profound materials revolution, driven by advances in metallurgical engineering, surface processing technologies, and computational design strategies. This article provides a comprehensive technical analysis of three significant innovations reshaping the field: the development of hard 24K pure gold through nanostructuring and micro-alloying techniques, the application of nickel-titanium shape memory alloys (TiNi) in wearable jewelry with enhanced

While bulk material properties determine the fundamental behavior of a jewelry piece, surface characteristics—color, luster, scratch resistance, and chemical stability—govern its perceived quality and long-term wear performance. This article reviews advanced surface engineering and coating technologies applicable to jewelry manufacturing, with emphasis on physical vapor deposition (PVD), diamond-like carbon (DLC) coatings, and electroplated multilayer systems. Unlike traditional rhodium flash

The jewelry manufacturing industry is undergoing a transformative shift driven by two parallel technological advances: additive manufacturing (AM) for direct metal fabrication and the development of high-performance alloy systems beyond traditional gold and platinum compositions. This article examines the integration of laser powder bed fusion (LPBF) and binder jetting technologies with novel materials including high-entropy alloys (HEAs) and precious metal matrix composites. Technical challenge

The integration of digital technologies—computer-aided design (CAD), additive manufacturing (3D printing), computer numerical control (CNC) milling, and laser processing—has transformed jewelry manufacturing from a purely craft-based discipline into a precision engineering practice. Where traditional jewelry manufacturing relied on lost-wax casting from hand-carved models, modern production leverages digital workflows that reduce lead times from weeks to days, enable mass customization, and pr

The jewelry manufacturing industry, historically bound by tradition and craft-based techniques, is undergoing a quiet but profound transformation driven by materials science. While gold, silver, and platinum remain the sentimental favorites, advanced materials—including refractory metals, ceramic composites, and laboratory-grown gemstones—are increasingly finding their place in high-end and contemporary jewelry manufacturing. These materials offer properties that traditional precious metals ca