JPS57202919A - Plastic working method - Google Patents

Plastic working method

Info

Publication number
JPS57202919A
JPS57202919A JP8715881A JP8715881A JPS57202919A JP S57202919 A JPS57202919 A JP S57202919A JP 8715881 A JP8715881 A JP 8715881A JP 8715881 A JP8715881 A JP 8715881A JP S57202919 A JPS57202919 A JP S57202919A
Authority
JP
Japan
Prior art keywords
temp
supersonic
plasticity
axial direction
change
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8715881A
Other languages
Japanese (ja)
Inventor
Masashi Mizuno
Katsuhiro Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP8715881A priority Critical patent/JPS57202919A/en
Publication of JPS57202919A publication Critical patent/JPS57202919A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To improve working efficiency for various kinds of materials to be worked, by measuring the change of supersonic characteristics of the material, and performing plastic working at the temp. which exceeds the temp. measured at that point of time. CONSTITUTION:A material 1 to be worked is heated by applying electric current from an electric-heating source 6, and together, the change of supersonic characteristics accompanying the temp. rise is measured by a supersonic flaw detector 13. When the sudden change of supersonic characteristics caused by the sudden change of a structural state of the material 1 is detected, a prescribed heat energy is given by the source 6 to rise the temp. of it by a prescribed temp., by setting the temp. detected, at that point of time with a temp. detector 12, as a standard temp. The material 1 is, then, made to be in the optimum working temp. i.e. in a structural state of the highest degree of plasticity. Then cooling gas is blown against the material 1 from each air nozzle to make the material 1 possess a temp. pattern through its axial direction in order to make the material 1 possess a gradient in the degree of plasticity. Next, respective parts of the material 1 are stretched through the axial direction in different elongation ratios respectively, corresponding to a small diametral part and to the degrees of plasticity at respective parts, so as to form a taper rod of which diameter changes in its axial direction.
JP8715881A 1981-06-05 1981-06-05 Plastic working method Pending JPS57202919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8715881A JPS57202919A (en) 1981-06-05 1981-06-05 Plastic working method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8715881A JPS57202919A (en) 1981-06-05 1981-06-05 Plastic working method

Publications (1)

Publication Number Publication Date
JPS57202919A true JPS57202919A (en) 1982-12-13

Family

ID=13907174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8715881A Pending JPS57202919A (en) 1981-06-05 1981-06-05 Plastic working method

Country Status (1)

Country Link
JP (1) JPS57202919A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372423A (en) * 1986-09-16 1988-04-02 Kobe Steel Ltd Working method and device for metallic wire rod
US6463779B1 (en) * 1999-06-01 2002-10-15 Mehmet Terziakin Instant heating process with electric current application to the workpiece for high strength metal forming
US6718809B1 (en) * 1998-01-10 2004-04-13 General Electric Company Method for processing billets out of metals and alloys and the article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372423A (en) * 1986-09-16 1988-04-02 Kobe Steel Ltd Working method and device for metallic wire rod
US6718809B1 (en) * 1998-01-10 2004-04-13 General Electric Company Method for processing billets out of metals and alloys and the article
US6826940B2 (en) * 1998-01-10 2004-12-07 General Electric Company Method of metal and alloy billet treatment
US6463779B1 (en) * 1999-06-01 2002-10-15 Mehmet Terziakin Instant heating process with electric current application to the workpiece for high strength metal forming

Similar Documents

Publication Publication Date Title
JPS57202919A (en) Plastic working method
JPS57202918A (en) Plastic working method
JPS57136139A (en) Fatigue testing device
JPS5363740A (en) Temperature controller
JPS57199537A (en) Plastic working method
JPS5651324A (en) Shrinking method of thermoshrinking tube
JPS57199517A (en) Plastic working method
JPS57184539A (en) Control method for plastic working temperature
JPS574527A (en) Measuring apparatus for temperature
JPS5587614A (en) Controller of air conditioner for car
JPS5272318A (en) Preparation of nut of high tensile strength
Kreplin Kinetic Energy Finned Projectile Aerodynamic Heating Measurement
Sakaguchi Complex Loading and Extrusion of Elasto-Plastic Materials With Saturating Work-Hardening
Schneider Application of Nondestructive Testing Processes in the Steel Industry
SU657318A1 (en) Installation for mechanical testing of articles being heated
Artinger et al. Thermal Fatigue Test for Tool Steels
JPS5841642A (en) Plastic working method
SCHULTZ Flow direction measurements in the tandem test sections of the model subsonic wind tunnel(MUK)
JPS5472385A (en) Program controller
JPS5484344A (en) Temperature and humidity adjusting method
Shi Research on infrared object simulator of the target
Bilek et al. Effect of local heating caused by plastic deformation at the crack tip on dynamic fracture toughness
Geguzin Plasticity of Iron Wires During Boundary Movement in the Transformation alpha<-> gamma
JPS5494414A (en) Method of hot-forming polygonal pipe
Schiffers Experimental Determination of the Errors in LCF Strain Measurement Caused by Using Specimens With Ridges