GB334634A - Method and apparatus for changing the form and improving the texture of hollow metal articles - Google Patents

Method and apparatus for changing the form and improving the texture of hollow metal articles

Info

Publication number
GB334634A
GB334634A GB18518/29A GB1851829A GB334634A GB 334634 A GB334634 A GB 334634A GB 18518/29 A GB18518/29 A GB 18518/29A GB 1851829 A GB1851829 A GB 1851829A GB 334634 A GB334634 A GB 334634A
Authority
GB
United Kingdom
Prior art keywords
mould
rings
leather
cup
container
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.)
Expired
Application number
GB18518/29A
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.)
Us Cast Iron Pipe & Foundry Co
Original Assignee
Us Cast Iron Pipe & Foundry Co
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 Us Cast Iron Pipe & Foundry Co filed Critical Us Cast Iron Pipe & Foundry Co
Publication of GB334634A publication Critical patent/GB334634A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/045—Closing or sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/043—Means for controlling the axial pusher

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

334,634. United States Cast Iron Pipe & Foundry Co., (Assignees of Langenberg, F. C.). Dec. 29, 1928, [Convention date]. Metal-working apparatus.-Radial contraction and axial elongation of a hollow cylindrical body is produced by means of external fluid pressure acting radially and, in some cases, also axially. The steel pipe mould D, Fig. 1, is placed in a container A having at one end a recess a<1> for the socket end D<1> of the mould, which is packed by a cup-leather E between rings F, G. A mandrel C may be placed in the mould, and the end of the container is closed by a plate B. The other end of the mould is packed by a cup-leather E', resting against rings F<1>, I which abut on piston-rings H, sprung into grooves in the mould. Fluid pressure admitted by a passage A<2> acts radially on the mould and also exerts an axial pressure on the packing E<1>. In a modification, Fig. 2, the axial force is eliminated, the end of the mould sliding in the cup-leather E<2>, which rests on rings F<3>, K abutting on an end-plate J. When the blank D is cylindrical throughout a similar packing may be employed at the other end of the container. The process is applicable also to articles of brass or bronze. Articles may be subsequently subjected to heat treatment at from 200-400‹ C.
GB18518/29A 1928-12-29 1929-06-15 Method and apparatus for changing the form and improving the texture of hollow metal articles Expired GB334634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US334634XA 1928-12-29 1928-12-29

Publications (1)

Publication Number Publication Date
GB334634A true GB334634A (en) 1930-09-11

Family

ID=21870550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18518/29A Expired GB334634A (en) 1928-12-29 1929-06-15 Method and apparatus for changing the form and improving the texture of hollow metal articles

Country Status (1)

Country Link
GB (1) GB334634A (en)

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