公开(公告)号：US20170291208A1

公开(公告)日：2017-10-12

申请号：US15511743

申请日：2015-09-29

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Ryuichi NISHIMURA ,  Yoshiaki NAKAZAWA ,  Toru YONEBAYASHI ,  Koichi SATO

IPC: B21D22/26 ,  B21D47/01 ,  B21D22/10 ,  B21D5/01 ,  B21D24/06

CPC classification number: B21D22/26 ,  B21D5/01 ,  B21D22/06 ,  B21D22/10 ,  B21D24/00 ,  B21D24/06 ,  B21D47/01

Abstract: A producing method of the press formed product includes a preparation step of preparing a metal sheet as a starting material; and a press working step of performing press working on the starting material. The press working step includes: during a time period from when pushing-in of the starting material into the die by the punch is started or immediately thereafter until the pushing-in of the punch with respect to the die reaches a predetermined distance short of a bottom dead point for the pushing-in, holding the pad at a position distant from the punch by the predetermined distance; when the pushing-in of the punch with respect to the die reaches the predetermined distance short of the bottom dead point, receiving the pad in the die; and continuing the pushing-in of the punch with respect to the die and the pad to the bottom dead point.

公开(公告)号：US2174970A

公开(公告)日：1939-10-03

申请号：US6017136

申请日：1936-01-22

Applicant: AMERICAN RADIATOR & STANDARD

Inventor： CORNELL JR EDWARD S

IPC: B21D24/06

CPC classification number: B21D24/06 ,  Y10T29/49446

公开(公告)号：US1691496A

公开(公告)日：1928-11-13

申请号：US20118527

申请日：1927-06-24

Applicant: JOSEPH RHODES CHARLES

Inventor： JOSEPH RHODES CHARLES

IPC: B21D24/06

CPC classification number: B21D24/06

公开(公告)号：US1108104A

公开(公告)日：1914-08-18

申请号：US1913747282

申请日：1913-02-10

Applicant: NASINEC JOHN G

Inventor： NASINEC JOHN G

CPC classification number: B21D24/06 ,  Y10T83/2166

公开(公告)号：US20160008864A1

公开(公告)日：2016-01-14

申请号：US14851423

申请日：2015-09-11

Applicant: KEYLEX CORPORATION

Inventor： Tsuyoshi Itaoka ,  Shigeki Teshima

IPC: B21D22/02

CPC classification number: B21D22/02 ,  B21D22/21 ,  B21D24/02 ,  B21D24/06 ,  B21D24/12 ,  B21D24/14 ,  B21D24/16 ,  B21D28/24 ,  B21D35/001 ,  B21D45/02 ,  B30B15/0076

Abstract: Provided is a press apparatus which ensures high production efficiency and has less chances of breakdown. Specifically, the press apparatus has a base placed on a floor, and a platform arranged over the base to face the base and move up and down. A lower die, on which a steel plate is to be placed, is fixed to the base. An upper die is fixed to the platform to press the plate against the lower die and turn it into an initially formed product through a downward movement of the platform, and to pressure-hold the initially formed product with the lower die. A machining die is supported on the platform to move up and down to machine the initially formed product and form a final product by moving down while pressure-holding the initially formed product.

Abstract translation: 提供一种确保高生产效率并且具有较少击穿机会的压制装置。 具体地说，按压装置具有放置在地板上的底座，以及布置在基座上以面对基座并且上下移动的平台。 将要放置钢板的下模固定在基座上。 上模固定在平台上，以将板压靠在下模上，并通过平台的向下运动将其转换成初始形成的产品，并将初始形成的产品与下模压力保持。 在平台上支撑加工模具以上下移动以对最初形成的产品加工，并在压紧初始成型的产品的同时向下移动形成最终产品。

公开(公告)号：US2084456A

公开(公告)日：1937-06-22

申请号：US68135

申请日：1935-01-07

Applicant: RODE FREDRICH J

Inventor： RODE FREDRICH J

IPC: B21D24/06

CPC classification number: B21D24/06

公开(公告)号：US1776919A

公开(公告)日：1930-09-30

申请号：US30767328

申请日：1928-09-22

Applicant: MARQUETTE TOOL & MFG CO

Inventor： SAMUEL MARGHITAN

IPC: B21D24/06

CPC classification number: B21D24/06

公开(公告)号：US1544594A

公开(公告)日：1925-07-07

申请号：US66850623

申请日：1923-10-15

Applicant: MARQUETTE TOOL & MFG CO

Inventor： NILSON KARL V ,  JOHN NELSON

IPC: B21D24/06

CPC classification number: B21D24/06

公开(公告)号：US20180154419A1

公开(公告)日：2018-06-07

申请号：US15820046

申请日：2017-11-21

Applicant: AIDA ENGINEERING, LTD.

Inventor： Takao Ito

IPC: B21D24/02

CPC classification number: B21D24/02 ,  B21D24/06 ,  B30B15/026 ,  B30B15/281

Abstract: A sliding frictional force generation mechanism includes a metal hole member having a hole, a metal shaft member fitted in the hole of the hole member in an axially slidable manner, and a lubrication mechanism configured to supply lubricating oil serving as a cooling medium between the holed ember and the shaft member. The shaft member is fitted in the hole in an interference fit state.

公开(公告)号：US09718113B2

公开(公告)日：2017-08-01

申请号：US14367257

申请日：2012-12-20

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION ,  TOYODA IRON WORKS CO., LTD.

Inventor： Masahiro Nakata ,  Toshiya Suzuki ,  Tomokichi Tokuda ,  Masanobu Ichikawa ,  Nobuyuki Ichimaru

IPC: B21D53/88 ,  B21D22/26 ,  B21D24/04 ,  B21D22/20 ,  B21D24/06 ,  B21K1/76 ,  B62D29/00 ,  B21D22/10

CPC classification number: B21D53/88 ,  B21D22/20 ,  B21D22/26 ,  B21D24/04 ,  B21D24/06 ,  B21K1/76 ,  B62D29/007 ,  Y10T428/1241

Abstract: A press-formed product includes a body having a transverse cross section including a bottom portion and a shoulder portion contiguous to the bottom portion through an R end. In the transverse cross section, a first region from the R end to a position a distance away in a bottom portion extending direction, and a second region which is part of the bottom portion and is contiguous to the first region have a work-hardening distribution introduced by press-forming. The work-hardening distribution has an average hardness Hv1 of an area of the first region from a steel sheet surface to a depth obtained by multiplying a steel sheet thickness by 0.2 and an average hardness Hv2 of an area of the second region from the steel sheet surface to a position obtained by multiplying the steel sheet thickness by 0.2 to satisfy a relationship of Hv1>1.05×Hv2.