JOHANSSON BLOCK Meaning and
Definition
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The term "Johansson block" refers to a specialized tool used in machining and precision engineering. It is named after its inventor, Carl Johansson, a Swedish engineer and inventor who introduced the concept of modular fixturing systems in the early 20th century.
A Johansson block is a precisely machined, rectangular-shaped block made from high-quality steel or other materials with excellent dimensional stability and durability. These blocks commonly have dimensions of 1 inch by 2 inches by 3 inches, but other sizes are also available. Johansson blocks are exceptionally accurate and are manufactured to strict tolerances.
One of the defining features of a Johansson block is its matching grid of precisely positioned holes that run parallel to each of its faces. These holes allow for the precise interlocking and stacking of multiple blocks, creating a modular system that allows for the construction of various configurations. By stacking and connecting these blocks, engineers can create customized workholding fixtures or setups to securely clamp workpieces during machining, assembly, or inspection processes.
Johansson blocks are widely regarded as an essential tool for achieving high precision in manufacturing processes. Their use ensures repeatability and accuracy, as the modular system allows for quick adjustments and easy reconfiguration to accommodate various workpiece sizes and shapes. The availability of clamps, bolts, and accessories further enhances the versatility of Johansson block systems, making them invaluable tools for machinists, toolmakers, and engineers seeking precision, flexibility, and efficiency in their work.
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Etymology of JOHANSSON BLOCK
The word "Johansson block" originates from the name of the Swedish engineer, Carl Axel Johansson (1864-1943), who invented and popularized this type of precision measurement tool. Johansson blocks, also known as gauge blocks or slip gauges, are rectangular or square-shaped blocks made of high-quality steel or ceramic with extremely precise dimensions. They are used in engineering and machining processes for measurement, calibration, and setting up of machine tools. As a tribute to Johansson's contribution to precision measurement, these blocks are commonly referred to as Johansson blocks.
