US1867120A - Means for rolling out a tube with an internal thickening at the rear end from a tubular blank - Google Patents

Means for rolling out a tube with an internal thickening at the rear end from a tubular blank Download PDF

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Publication number
US1867120A
US1867120A US483601A US48360130A US1867120A US 1867120 A US1867120 A US 1867120A US 483601 A US483601 A US 483601A US 48360130 A US48360130 A US 48360130A US 1867120 A US1867120 A US 1867120A
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US
United States
Prior art keywords
mandrel
rear end
tube
blank
thickening
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 - Lifetime
Application number
US483601A
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English (en)
Inventor
Vollmer August
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1867120A publication Critical patent/US1867120A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/043—Upsetting and flanging tube end

Definitions

  • the abutment member can engage with an annular projection in the rear end of the blank, which annular projection of the abutment member may be made entirely conical or conical at its forward end for enabling it to be inserted in a satisfactory manner.
  • the abutment member is so "constructed that it has a .guiding portion which engages over the thicker part of the mandrel so that it is thereby secured against canting.
  • the new arrangement provides the advantage that it isnotnecessary to exchange mandrels and that therefore there is no unnecessary loss oftime between the .end of the pilgermg of the normal part of the tube and the com mencement of the pilgering of the rearward end thickening, as the abutment ring can be mandrel re-introduced within a very short time.
  • a further great advantage of the invention consists in this, that the annular projectioning operation and the portion of the tube having a normal wall thickness, the blank being also provided at its forward end with a thickening.
  • Fig. 2 shows the commencement of the pil-' gering of'the rear end thickening. After the blank 1 has been rolled down all but a portion corresponding to the thickening atthe rear end of the tube, the mandrel 2 is withdrawn from the blank and is provided.
  • the abutment ring 4 which rests against the shoulder 3 on the mandrel.
  • the abutment ring 4 has an annular projection 5 with which it engages in the rear end of-the blank when the mandrel is inserted and a guiding. part 6 which embraces the thicker partofthe mandrel. 7 is the stripping sleeve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Control Of Metal Rolling (AREA)
US483601A 1930-02-09 1930-09-22 Means for rolling out a tube with an internal thickening at the rear end from a tubular blank Expired - Lifetime US1867120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE518507T 1930-02-09

Publications (1)

Publication Number Publication Date
US1867120A true US1867120A (en) 1932-07-12

Family

ID=34070070

Family Applications (1)

Application Number Title Priority Date Filing Date
US483601A Expired - Lifetime US1867120A (en) 1930-02-09 1930-09-22 Means for rolling out a tube with an internal thickening at the rear end from a tubular blank

Country Status (4)

Country Link
US (1) US1867120A (en)van)
BE (1) BE375359A (en)van)
DE (1) DE518507C (en)van)
GB (1) GB357005A (en)van)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571970A (en) * 1981-09-14 1986-02-25 Kocks Technik Gmbh & Co. Rolling mill plant for the manufacture of seamless tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571970A (en) * 1981-09-14 1986-02-25 Kocks Technik Gmbh & Co. Rolling mill plant for the manufacture of seamless tubes

Also Published As

Publication number Publication date
DE518507C (de) 1931-02-17
GB357005A (en) 1931-09-17
BE375359A (en)van)

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