FR2224223A1 - Forming flared end steel tubes - in sequential two die process using punch acting as mandrel - Google Patents

Forming flared end steel tubes - in sequential two die process using punch acting as mandrel

Info

Publication number
FR2224223A1
FR2224223A1 FR7312647A FR7312647A FR2224223A1 FR 2224223 A1 FR2224223 A1 FR 2224223A1 FR 7312647 A FR7312647 A FR 7312647A FR 7312647 A FR7312647 A FR 7312647A FR 2224223 A1 FR2224223 A1 FR 2224223A1
Authority
FR
France
Prior art keywords
blank
punch
mandrel
flared end
sequential
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.)
Granted
Application number
FR7312647A
Other languages
French (fr)
Other versions
FR2224223B1 (en
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.)
SIMON JOSEPH US
Original Assignee
SIMON JOSEPH US
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 SIMON JOSEPH US filed Critical SIMON JOSEPH US
Priority to FR7312647A priority Critical patent/FR2224223A1/en
Publication of FR2224223A1 publication Critical patent/FR2224223A1/en
Application granted granted Critical
Publication of FR2224223B1 publication Critical patent/FR2224223B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/03—Making uncoated products by both direct and backward extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/26—Making machine elements housings or supporting parts, e.g. axle housings, engine mountings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

A seamless steel tube blank is initially inserted into the upper flared end of a first die made in a stepped form including a narrow mid portion forming a shoulder with the upper end, and having a straight lower end. A punch with an enlarged body with a pushing shoulder at the lower end engages the blank, the spindle portion of the punch acting like a mandrel within the blank. The partly shaped blank is then put in a second die and shaped with another punch with a widened upper portion of dia. equal to the workpiece o.d., simultaneously the mid-portion expands the upper bore into the flare. Relatively low forming pressures are required. Useful for steel spindle housing mfr. for journalling lorry wheel axles.
FR7312647A 1973-04-09 1973-04-09 Forming flared end steel tubes - in sequential two die process using punch acting as mandrel Granted FR2224223A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7312647A FR2224223A1 (en) 1973-04-09 1973-04-09 Forming flared end steel tubes - in sequential two die process using punch acting as mandrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7312647A FR2224223A1 (en) 1973-04-09 1973-04-09 Forming flared end steel tubes - in sequential two die process using punch acting as mandrel

Publications (2)

Publication Number Publication Date
FR2224223A1 true FR2224223A1 (en) 1974-10-31
FR2224223B1 FR2224223B1 (en) 1979-10-05

Family

ID=9117607

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7312647A Granted FR2224223A1 (en) 1973-04-09 1973-04-09 Forming flared end steel tubes - in sequential two die process using punch acting as mandrel

Country Status (1)

Country Link
FR (1) FR2224223A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11059084B2 (en) * 2018-07-09 2021-07-13 No.59 Research Institute Of China Ordnance Industry Forward and backward extrusion composite forming method using mould having open inner cavity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11059084B2 (en) * 2018-07-09 2021-07-13 No.59 Research Institute Of China Ordnance Industry Forward and backward extrusion composite forming method using mould having open inner cavity

Also Published As

Publication number Publication date
FR2224223B1 (en) 1979-10-05

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Legal Events

Date Code Title Description
ST Notification of lapse