Sharpening for Threading at 55 ° degrees in the English System with Sharpening device

Characteristics of the Whitworth Thread of the English system (Inch, angle 55 degrees).
The first person to create a standard thread type, around 1841, was the English mechanical engineer Sir Joseph Whitworth.
The Whitworth thread system is still used to repair old machinery and has a thicker thread thread than the metric thread thread.
The Whitworth system was a British standard, abbreviated to BSW (BS 84: 1956), and the British Standard Fine Thread (BSF) was introduced in 1908 because the Whitworth thread was coarse for some uses.
The angle of the thread is 55 ° instead of the 60 ° that the metric thread has, the depth and thickness of the thread filler varied with the diameter of the screw (that is, the thicker the bolt, the thicker the thread fillet).
In this thread system the pitch is considered as the number of threads per inch, and the diameter is expressed in fractions of an inch. (Example 1/4 ", 5/16")
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[@ismaeldejesusrodriguezcaba7461]

Excelente experiencia viví haciendo ese afilado en la rectificadora

[@tonyjulian1643]

Sube muy buenos vídeos inge, a ver cuando se anima a dar unos cursos de cnc

[@reynermairena1]

Muchas gracias por su comentario

[@jhonjimmy1974]

profesor disculpe cuantos tipos de montaje existen en el torno convencional mecánico