PRODUCTION OF MAGNETIC HEAD

摘要

PURPOSE:To simplify a manufacturing process and at the same time to obtain high precision for the track width, by forming a track width controlling groove after forming a gap and then glass-molding the control groove. CONSTITUTION:Winding grooves 11 and 11' are formed to magnetic blocks 9 and 9', and a surface including these grooves 11 and 11' is worked to a specular surface to obtain gap surfaces 10 and 10'. Several pieces of reinforcing bond glass of small diameters are put into the apex part of a winding hole formed by the grooves 11 and 11' and at the same time is heated and melted. Thus a reinforcing glas sink 16 is formed. A track width controlling groove 18 is formed on the surface 14 of a head block at a prescribed pitch to decide the track width 17. A material 23 which is hardly familiar with the glass (carbon fiber in this example and a carbon sintered matter is also available) if filled into the winding grooves 7 and 7'. Then the glass 19 is heated and melted into the groove 18 for molding. The excessive glass is deleted and cut at a cutting line 21.