RU2002119972A - BENDING DETAILS METHOD WITH BIG BEND RADIUS - Google Patents

BENDING DETAILS METHOD WITH BIG BEND RADIUS

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Publication number
RU2002119972A
RU2002119972A RU2002119972/02A RU2002119972A RU2002119972A RU 2002119972 A RU2002119972 A RU 2002119972A RU 2002119972/02 A RU2002119972/02 A RU 2002119972/02A RU 2002119972 A RU2002119972 A RU 2002119972A RU 2002119972 A RU2002119972 A RU 2002119972A
Authority
RU
Russia
Prior art keywords
bending
during bending
internal stresses
punch
shafts
Prior art date
Application number
RU2002119972/02A
Other languages
Russian (ru)
Other versions
RU2243049C2 (en
Inventor
Игорь Вадимович Ястребов
Original Assignee
Игорь Вадимович Ястребов
Filing date
Publication date
Application filed by Игорь Вадимович Ястребов filed Critical Игорь Вадимович Ястребов
Priority to RU2002119972/02A priority Critical patent/RU2243049C2/en
Priority claimed from RU2002119972/02A external-priority patent/RU2243049C2/en
Publication of RU2002119972A publication Critical patent/RU2002119972A/en
Application granted granted Critical
Publication of RU2243049C2 publication Critical patent/RU2243049C2/en

Links

Claims (2)

1. Гибка деталей с большим радиусом изгиба в штампе, содержащем пуансон и матрицу, отличающаяся тем, что, с целью снятия внутренних напряжений, возникающих в детали при гибке, рабочая поверхность одного из элементов штампа (обычно пуансона) выполнена в виде последовательно чередующихся продольных (вдоль оси штампа) конструктивных элементов “выступ” - “впадина”, позволяющих в конце хода пуансона производить местные перегибы детали, в зоне которых происходит изменение направлений внутренних напряжений, а именно: происходит растяжение сжатого во время гибки внутреннего слоя детали и сжатие растянутого во время гибки наружного слоя детали.1. Bending of parts with a large bending radius in a stamp containing a punch and a die, characterized in that, in order to relieve internal stresses arising in the part during bending, the working surface of one of the stamp elements (usually a punch) is made in the form of successively alternating longitudinal ( along the axis of the stamp) of the structural elements “protrusion” - “cavity”, allowing at the end of the stroke of the punch to produce local bends of the part, in the area of which the direction of internal stresses changes, namely: addition during bending of the inner layer of the part and compression of the outer layer of the part stretched during bending. 2. Гибка деталей с большим радиусом изгиба на листогибочных вальцах, содержащих гибочные валы, отличающаяся тем, что, с целью снятия внутренних напряжений, возникающих в детали при гибке, рабочая поверхность одного из валов выполнена в виде последовательно чередующихся продольных (вдоль оси валов) конструктивных элементов “выступ” - “впадина”, позволяющих во время гибки производить местные перегибы детали, в зоне которых происходит изменение направлений внутренних напряжений, а именно: происходит растяжение сжатого во время гибки внутреннего слоя детали и сжатие растянутого во время гибки наружного слоя детали.2. Bending of parts with a large bending radius on the bending rollers containing bending shafts, characterized in that, in order to relieve internal stresses arising in the part during bending, the working surface of one of the shafts is made in the form of sequentially alternating longitudinal (along the axis of the shafts) structural “protrusion” - “depression” elements, allowing during bending to produce local bends of the part, in the area of which the direction of internal stresses changes, namely: there is an extension of the inner part compressed during bending the early layer of the part and the compression of the outer layer of the part stretched during bending.
RU2002119972/02A 2002-07-22 2002-07-22 Method for part bending with large radius (variants) RU2243049C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002119972/02A RU2243049C2 (en) 2002-07-22 2002-07-22 Method for part bending with large radius (variants)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002119972/02A RU2243049C2 (en) 2002-07-22 2002-07-22 Method for part bending with large radius (variants)

Publications (2)

Publication Number Publication Date
RU2002119972A true RU2002119972A (en) 2004-04-20
RU2243049C2 RU2243049C2 (en) 2004-12-27

Family

ID=34387110

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002119972/02A RU2243049C2 (en) 2002-07-22 2002-07-22 Method for part bending with large radius (variants)

Country Status (1)

Country Link
RU (1) RU2243049C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2901694T3 (en) * 2019-01-15 2022-03-23 Deharde Gmbh Procedure for forming a workpiece in the form of a plate

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