Journal of High Pressure Institute of Japan

Computer Assisted Design and Manufacturing System for Welded Structure

Toshiharu NOMOTO

1993 Volume 31 Issue 3 Pages 114-127
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.114

JOURNAL FREE ACCESS

Download PDF (1877K)
Progress in welds for modern steels including TMCP

Yukihiko HORII

1993 Volume 31 Issue 3 Pages 128-137
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.128

JOURNAL FREE ACCESS

Show abstractHide abstract

After the oil crisis, the developments of off shore fields have reached to North Sea and Arctic Sea. New welded steel structures such as a caisson and an ice breaker have been in progress. Weldments of them require multi-performance characteristics including high strength, high toughness in high heat input condition, resistance for local corrosion and SSC, etc. Many kinds of steels and weld techniques have been developed to meet these demands. Weldability of steel has been largely improved by TMCP. Weld metals provide enough toughness, strength and resistance for SSC as well as steels but are inferior in resistance for cold crack. Because it is difficult to control the cooling rate during weld and CEQ of weld metal can not be reduced. The chemical compositions should be balanced between weld metal and base plate to avoid local corrosion. Recent progress of steels and welds are described.

View full abstract

Download PDF (2746K)
High Corrosion Resistant Stainless Steel recently Developed and its Welding Technology

Kazuhiro OGAWA

1993 Volume 31 Issue 3 Pages 138-145
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.138

JOURNAL FREE ACCESS

Download PDF (742K)
Application of Clad Material to Pipeline and its Welding Method

Moriyasu NAGAE

1993 Volume 31 Issue 3 Pages 146-152
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.146

JOURNAL FREE ACCESS

Show abstractHide abstract

An application of clad pipes to pipelines is introduced from the viewpoints of an economical aspect, material selection, production and field welding methods.
First, a total cost of offshore pipelines is compared between clad pipes and carbon steel pipes with inhibitors. When a highly corrosive gas streams with high flow rate, the cost of an inhibitor injection becomes high and hence an application of clad pipes becomes feasible. Secondly, material selection methods of clad metals are discussed for both a wet carbon dioxide environment and a hydrogen sulfide environment. Among various types of corrosion resistant alloys, clad metals are selected considering thier corrosion resistance, the material cost and the total performance such as weldability. Thirdly, a manufacturing process of clad UOE pipes is introduced as an example of large diameter clad pipes. Finally, welding methods of field girth welding of line pipes are described and the future subjects are discussed.

View full abstract

Download PDF (4006K)
Application of aluminium alloys to the car body to lighten the weight and the problem of the aluminium welding

Jiro MATSUMOTO

1993 Volume 31 Issue 3 Pages 154-168
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.154

JOURNAL FREE ACCESS

Show abstractHide abstract

As the human life advances, the transport of people and commodities are made more actively in various ways, and requirements in transportation have been increased in terms of safety, environmental protection, amenity, economy, etc.
More attention has recently been paid to railway vehicles which are able to move more punctually than automobiles, while as for automobiles, research and development have been made more intensively on fuels and weight reduction from the viewpoint of environmental issues. Under these circumstances, advantages in the means of transportation are reconsidered extensively.
In this paper, the application of aluminium and its alloys will be reviewed mainly for weght reduction of railway vehicles.

View full abstract

Download PDF (1468K)
Welding of Titanium and Titanium Alloys

Hiroaki HIROSE

1993 Volume 31 Issue 3 Pages 169-175
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.169

JOURNAL FREE ACCESS

Show abstractHide abstract

Since “Titanium” is lightweight and strong, and provides excellent corrosion-resistance performance and high formability, it has been used widely in each field at present as useful industrial material.
Weldability of pure titanium can be said to be extremely excellent as long as welding atmosphere is fully controlled. The following outlines the TIG welding procedures for titanium and titanium alloy and properties of typical joint example together with the practical application examples.

View full abstract

Download PDF (667K)
Stress Analysis of Spot Welded Cross Lap Joint Subjected to Out-of-Plane Tension Load

Noboru TOMIOKA, Seok Hyun Lim, Keun Ha Shin, Ki Chang Lim

1993 Volume 31 Issue 3 Pages 176-184
Published: May 25, 1993
Released on J-STAGE: August 05, 2010

DOIhttps://doi.org/10.11181/hpi1972.31.176

JOURNAL FREE ACCESS

Show abstractHide abstract

Although many experiments were carried out to find out fatigue properties for spot welding, almost none of stress analysis for spot welding specimens was performed up to now.
This paper presents stress analysis for plain stress and bending problems with cross-tension specimen out of many types of speciments.

View full abstract

Download PDF (688K)

Register with J-STAGE for free!