Abstract: An apparatus for processing a vibratory surface in which a processed object is hung on a hook, the hook is supported by the supporting frame having an air spring, the object is immersed in a surface treating liquid. The height of the air spring is automatically adjusted to the most suitable standard height in response to a weight of the processed object and then the surface treatment is carried out while the hook is being vibrated. An apparatus for performing this vibratory surface treatment method is provided.

Abstract: A method for processing a vibratory surface in which a processed object is hung on a hook, the hook is supported by the supporting frame having an air spring, the object is immersed in a surface treating liquid. The height of the air spring is automatically adjusted to the most suitable standard height in response to a weight of the processed object and then the surface treatment is carried out while the hook is being vibrated. An apparatus for performing this vibratory surface treatment method is provided.

Abstract: Process and apparatus for cutting surface flaws of a material to be machined, including detecting the travelling speed and position of a wire material or a rod-like material in order to set a cut-in quantity to be applied to a cutting tool on the basis of a flaw-depth signal of the signals so detected, operating the advancing and retreating timings of the cutting tool on the basis of the travelling speed signal, the flaw the surface flaw position signal and a tool cut-in angle set value signal that is set in advance, operating simultaneously the advancing and retreating speeds of the cutting tool on the basis of the travelling speed signal and the cut-in angle set value signal and actuating and controlling a tool driving device in accordance with the results of these operations.