The Buehler Wilson® Reference Block Laboratory in Binghamton, NY, has achieved accreditation to ISO/IEC 17025 by A2LA (American Association for Laboratory Accreditation) for Rockwell, Knoop, Vickers and Brinell hardness test blocks and indenters. A2LA is in full conformance with the standards of the International Organization for Standardization (ISO) and the International Electro-Technical Commission (IEC), including ISO/IEC 17025. Buehler markets the reference blocks along with the Wilson hardness testers and DiaMet software globally.
The testers used in the calibration process undergo a stringent monitoring process using NIST traceable devices and Buehler conducts 100% inspection to ensure that every single test block meets the physical requirements of ASTM (thickness, flatness, parallelism, surface roughness and magnetism). The laboratory then uses specialized hardness testers to calibrate blocks according to Rockwell, Vickers and Brinell scales which comply to ASTM and ISO standards for calibrating test blocks.
According, to Matthias Pascher, Hardness Product Manager, “The hardness readings are taken and statistics calculated according to the applicable standards. Each test block will get its own certificate, thus full traceability. In addition to in-house daily verifications, standards also require indirect verifications to be completed periodically by an accredited third-party. After the indent certification, the blocks are engraved with a laser engraver to add a grid (if applicable) and the hardness value with tolerance according to the standards. All hardness test blocks ship with ASTM and ISO certificates. Buehler is the only global supplier in the metallographic solution market that produces and calibrates hardness reference blocks.”
Scope of Accreditation The Buehler Wilson® Reference Block Laboratory in Binghamton, New York, is accredited to perform calibrations on hardness reference blocks according to the following standards:
Buehler Test Blocks Available in Rockwell, Vickers, Knoop and Brinell Hardness Scales Buehler’s hardness reference blocks utilize the highest quality material to insure the most uniform and repeatable test blocks available. Buehler’s Test Block Calibration Laboratory has the capability to produce and calibrate test blocks for many different hardness scales.
The complete line of Wilson Rockwell, Wilson Brinell and Wilson Vickers / Knoop Test Blocks for hardness testing is available within the hardness section of the Buehler website. To assist customers in the selection, process Buehler has also released a Test Block Application Guide with valuable information about the Wilson line of test blocks and important information about proper usage of test blocks.
An overview of the definitions and classes of metamaterials will be provided with a specific emphasis to the applications as lightweight structural materials. The various features of structural metamaterials will be discussed as well as the role of metal additive manufacturing in enabling the scale of these materials. Future pathways to the implementation of these unique materials will be presented.
The lecture will first review the prototypical structures and identifying properties of various industrially relevant light metals. Then, several case studies will be presented to demonstrate the novel use of these materials in light weighting across different fields. The lecture will conclude with emerging materials and tools to design them.
The field of metal additive manufacturing will be discussed with a highlight to the variety of technologies currently in use and identify the industry leading techniques. The core principals of each will be presented along with comparisons and use cases for each.
Powder metallurgy as a class of processing technologies will be covered with an emphasis to the key differentiations with conventional processing. The implication of critical solidification parameters including cooling rate will be reviewed as they affect the refinement of microstructures and the presence of metastable structures. Traditional consolidation approaches to creating bulk parts will be discussed as well as the use of metal powder as a feedstock to additive manufacturing.
This lecture will serve to established and review the core metallurgical principles that are essential to understanding materials as a system. With an overview of the hierarchical structural features of metals, fundamentals of solidification, wrought processing, and heat treatment, the interconnected relationships of processing, structure, and properties will be established.
This lecture will serve as a motivation for the course with emphasis on current trends in light weighting of structural materials. Global context to the need for light weighting will be provided as it is critical to a variety of fields from aerospace to the electrification of transportation. Paths forward will be proposed, specifically the unique potential of metal additive manufacturing to accomplishing these goals. This lecture will conclude by introducing the structure of the lectures that will be presented in the course.