Salient point forming device and method

Abstract

The invention provides a salient point forming device for forming salient points on a preset position on a workpiece, which comprises a base with a concave surface, a heating unit and a molding pin with a spherical surface, wherein the base is arranged at the lower part of the workpiece; the heating unit is used for heating the preset position on the workpiece to improve the ductility of the preset position on the workpiece; the molding pin is arranged at the upper part of the workpiece and the spherical surface of the molding pin aligns with the preset position heated by the heating unit on the workpiece; and before the preset position on the workpiece is stamped by the molding pin, the heating unit effectively improves the ductility and malleability of the preset position on the workpiece, and the stress generated at junctions for salient points is smaller when the molding pin stamps the workpiece. The invention also discloses a salient point forming method, a head gimbal assembly and a manufacturing method thereof.

Description

technical field [0001] The present invention relates to an information disk drive device, and more particularly to a device and method for forming bumps on a suspension member of a disk drive device. Background technique [0002] The well-known information storage device generally refers to a magnetic disk drive device, which stores information using a magnetic medium on which a movable magnetic head is placed for selectively reading or writing data from or to the magnetic disk. [0003] figure 1 A conventional disk drive unit is shown, and a disk 101 for high-speed storage of digital information mounted on a spindle motor 102 for rotating the disk 101 is shown. The HGA 100 includes a magnetic head 104 with a read / write head and a suspension 110 for mounting the magnetic head. The HGA 100 is connected to a driving arm 105 , and the driving arm 105 rotates around a bearing 106 . The voice coil motor 107 is used to control the rotation of the bearing 106 so as to control th...

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Problems solved by technology

[0006] However, in the above-mentioned process of forming bumps 115 on the load bar 111 , because there is no preheating treatment for the load bar 111 , the load bar 111 rapidly and violently occurs during the stamping process of the forming pin 220 deformation, resulting in high stress at the junction of the load bar 111 and bump 115

This will affect the static performance of the load bar 111 of the suspension member 110, thereby affecting the static performance of the magnetic head 104 assembled with the suspension member 110 into the magnetic head gimbal assembly 100, and then affecting the assembly of the magnetic head gimbal assembly 100. The read and write capabilities of the head 104

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