Method and device used for forging and pressing hard disk drive substrate with extension height

A hard disk drive, forging technology, applied in the direction of forging/pressing/hammer device, forging press, forging press, etc., can solve the problem of harmful, flowing into or leaking from the completed hard disk drive substrate, extending the hard disk drive Substrate and other issues

Inactive Publication Date: 2016-11-23
CHEUNG WOH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, materials used to extend the wall height of hard drive substrates may have the same drawbacks as the press-worked metals described above
In addition, gases may flow into or escape from the finished HDD substrate through the junction where the swaged HDD substrate meets the height extension
Gas leakage or introduction into the internal components of the finished hard disk drive substrate may cause harmful and / or unintended effects on the components and operation of the finished hard disk drive

Method used

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  • Method and device used for forging and pressing hard disk drive substrate with extension height
  • Method and device used for forging and pressing hard disk drive substrate with extension height
  • Method and device used for forging and pressing hard disk drive substrate with extension height

Examples

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Embodiment Construction

[0013] figure 1 One embodiment of a system 100 for swaging a hard disk drive substrate having an extended height is shown. In one embodiment, metal extruded sheet 110 is progressively formed in a series of transfer dies over a series of progressive forging stages (eg, stages 120 - 1 to 120 -N) to form hard disk drive substrate 150 . The pressplate of the transfer die that performs the forging operation is either coated with a titanium nitride (TiN) coating or made of high speed steel or carbon tool steel to increase the hardness of the pressplate and to increase the tool use of the pressplate Life, and improve forging efficiency. In one embodiment, additional press processing operations are performed in additional stages using additional machines (not shown) to further form the hard disk drive substrate, including trimming, punching, stamping, embossing, or other suitable processing.

[0014] In one embodiment, the metal used in the series of stamping stages used to form the...

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Abstract

The invention discloses a method and device used for forging and pressing a hard disk drive substrate with the extension height. The method can comprise the steps that an original hard disk drive substrate moves forwards to the first forging and pressing stage in a series of grading type forging and pressing stages for forming the hard disk drive substrate, and a series of forging and pressing operation processes are executed in a series of grading type forging and pressing stages to form components of the hard disk drive substrate in a grading manner. The method can further comprise the steps that the first forging and pressing operation is conducted on the original hard disk drive substrate; the hard disk drive substrate is preheated; and the second forging and pressing operation is conducted on the preheated hard disk drive substrate.

Description

technical field [0001] Embodiments of the invention relate generally to the field of metal component fabrication, and more specifically, to fabrication processes for wrought hard disk drive substrates. Background technique [0002] The housing of a hard disk drive used in a computer system typically includes a cover and a base plate secured with screws. The base plate supports hard drive components (eg, spindles, motors, and actuators). [0003] One conventional substrate manufacturing process involves press working a metal plate with side frames on opposite sides. In this process, the base plate is press-worked to forge a recess having some holes for the mounting of the motor. Two side frames are press-worked from a metal plate and fixedly mounted on opposite sides of the substrate to produce a hard disk drive substrate having a wall portion of a desired height. There are a number of issues that can exist with press-processed and assembled hard disk drive substrates. Fo...

Claims

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Application Information

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IPC IPC(8): B21J5/02B21J1/06G11B25/04
CPCG11B25/043B21K23/00B21J9/022B21J1/06B21J5/008
Inventor K·Y·罗Y·C·罗
Owner CHEUNG WOH TECH
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