Upsetting method and upsetting apparatus

Inactive Publication Date: 2009-09-03
SHOWA DENKO KK
View PDF11 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0082]According to the invention as recited in the aforementioned Item [11

Problems solved by technology

However, subjecting the upsetting manufactured product to quench hardening among the heat treatments may sometimes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Upsetting method and upsetting apparatus
  • Upsetting method and upsetting apparatus
  • Upsetting method and upsetting apparatus

Examples

Experimental program
Comparison scheme
Effect test

example

[0161]Next, concrete Examples and Comparative Examples of the present invention will be shown below. However, it should be noted that the present invention is not limited to the following examples.

[0162]As raw materials 1, a plurality of heat-treatment type aluminum alloy extruded materials whose alloy number is 6061 according to JIS (Japanese Industrial Standards) were prepared. The diameter of the raw material 1 was 16 mm. Each raw material 1 was subjected to the upsetting method shown in the aforementioned embodiment. At this time, the heating temperature of the raw material 1, the heating temperature of both the guides 20 and 20, the temperature of the forming die 11, the setting method of the raw material 1, and the heat treatment after the upsetting were variously changed as explained below.

[0163]Subsequently, the warpage “a” and the bend “b” of the obtained upsetting manufactured product 5 were measured (see FIG. 10A and FIG. 10B). Moreover, as the mechanical strength of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Temperatureaaaaaaaaaa
Temperatureaaaaaaaaaa
Temperatureaaaaaaaaaa
Login to view more

Abstract

An upsetting method capable of eliminating a correction step by preventing occurrence of quench distortion is provided. The method includes the step of preparing an upsetting apparatus 10 equipped with a forming die 11 and a guide 20 having an insertion hole 21 for securing a diameter expansion scheduled portion 2 of the bar-shaped raw material 1 in a buckling preventing state and a punch 30. The diameter expansion scheduled portion 2 of the raw material 1 in a heated state is disposed in the insertion hole 21 of the guide 20 in a heated state, and the tip end portion of the guide 20 is disposed in the cavity 12 of the forming die 11 adjusted in temperature so as to be below a temperature of the raw material 1, and the raw material is secured to the securing portion 13 of the forming die 11. With this state, the guide 20 is moved in a direction opposite to a moving direction 37 of the punch 30 while axially pressurizing the diameter expansion scheduled portion 2 of the raw material 1 by moving the punch 30, to thereby expand the diameter expansion scheduled portion 2 of the raw material 1 exposed between a tip end portion of the guide 20 and the securing portion 13 of the forming die 11 within the cavity 12 of the forming die 11.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Japanese Patent Application No. 2005-177991 filed on Jun. 17, 2005, and U.S. Provisional Application No. 60 / 693,407 filed on Jun. 24, 2005, the entire disclosures of which are incorporated herein by reference in their entireties.[0002]This application is an application filed under 35 U.S.C. §111(a) claiming the benefit pursuant to 35 U.S.C. §119(e)(1) of the filing date of U.S. Provisional Application No. 60 / 693,407 filed on Jun. 24, 2005, pursuant to 35 U.S.C. §111(b).TECHNICAL FIELD[0003]The present invention relates to an upsetting method and an upsetting apparatus for manufacturing various products, such as, e.g., an arm, a connecting rod, or a double-headed piston of compressors for use in vehicles (automobiles or railroad vehicles).BACKGROUND ART[0004]The following description sets forth the inventor's knowledge of related art and problems therein and should not be construed as an admission of kno...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21J5/08B21J13/02
CPCB21J5/08B21J5/02B21J1/06B21J9/06B21J13/02B21J17/02
Inventor OTAKI, ATSUSHI
Owner SHOWA DENKO KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap