公开(公告)号：US20200009627A1

公开(公告)日：2020-01-09

申请号：US16319973

申请日：2018-03-21

申请人： Bharat Forge Limited

发明人： Babasaheb Neelkanth KALYANI ,  Basavraj Prabhakar KALYANI ,  Madan Umakant TAKALE ,  Vijaykumar Hanumant KHASNIS ,  Ramdas Dnyandev SATPUTE

IPC分类号： B21C23/18

摘要： The present invention is directed to an integral planet carrier with no joints, a method of manufacturing it and an apparatus for doing so. Such integrally manufactured components have better strength than a conventionally produced multi-piece jointed planet carriers or integral planet carriers made from casting process. The present invention provides a hot forging process which can be used for the manufacturing of the planet carrier. The manufacturing process comprises of forward extrusion of a billet followed by backward extrusion. This is followed by bending operation, which is in turn followed by a flattening operation. Post-forging heat treatment and other treatments such as shot blasting follow. Finally machining is carried out to arrive at the final integrally formed planet carrier. The forward extrusion, backward extrusion, bending and flattening operations are done on a press or hammer having sufficient energy and load capacity. Preferably these operations are performed on a hydraulic press in order to achieve the required accuracy and precision.

公开(公告)号：US20170266715A1

公开(公告)日：2017-09-21

申请号：US15511150

申请日：2015-08-14

申请人： Bharat Forge Limited

发明人： Babasaheb Neelkanth Kalyani ,  Shreyans Subhash Khot ,  Madan Umakant Takale ,  Valmik Vitthal Bhavar ,  Manoj Rajendra Ukhande

IPC分类号： B21J1/02 ,  F16K27/04 ,  B21K1/20 ,  B21J5/02 ,  B21J5/08

摘要： The invention discloses a process of manufacturing heavy and critical components such as a blowout preventer (BOP) with a combination of open die forging, piercing and machining process which results in to better material utilization and saving in the machining time. The forging process of the invention involves a step of notching, wherein a transverse notch is made near each end of the ingot before cogging said ingot. The invention allows development of safety and critical components with effective material utilisation.

公开(公告)号：US10576529B2

公开(公告)日：2020-03-03

申请号：US15511150

申请日：2015-08-14

申请人： Bharat Forge Limited ,  Babasaheb Neelkanth Kalyani ,  Shreyans Subhash Khot ,  Madan Umakant Takale ,  Valmik Vitthal Bhavar ,  Manoj Rajendra Ukhande

发明人： Babasaheb Neelkanth Kalyani ,  Shreyans Subhash Khot ,  Madan Umakant Takale ,  Valmik Vitthal Bhavar ,  Manoj Rajendra Ukhande

IPC分类号： B21J1/00 ,  B21J1/02 ,  B21J5/12 ,  B21K3/00 ,  B21J5/02 ,  B21J5/08 ,  B21K1/20 ,  F16K27/04

摘要： The invention discloses a process of manufacturing heavy and critical components such as a blowout preventer (BOP) with a combination of open die forging, piercing and machining process which results in to better material utilization and saving in the machining time. The forging process of the invention involves a step of notching, wherein a transverse notch is made near each end of the ingot before cogging said ingot. The invention allows development of safety and critical components with effective material utilisation.

公开(公告)号：US20180354081A1

公开(公告)日：2018-12-13

申请号：US15779786

申请日：2016-12-01

申请人： Babasaheb Neelkanth KALYANI ,  Madan Umakant TAKALE ,  Vijaykumar Hanumantrao KHASNIS ,  Amol Raghunathrao DESHMUKH ,  Bharat Forge Limited

发明人： Babasaheb Neelkanth Kalyani ,  Madan Umakant Takale ,  Vijaykumar Hanumantrao Khasnis ,  Amol Raghunathrao Deshmukh

IPC分类号： B23P15/50 ,  B21K1/26 ,  C21D9/00 ,  F04B1/053 ,  F04B27/053 ,  F04B39/12 ,  F16L41/02

CPC分类号： B23P15/50 ,  B21K1/26 ,  B23P15/00 ,  C21D7/13 ,  C21D9/0081 ,  C21D2221/00 ,  C21D2261/00 ,  F04B1/053 ,  F04B27/053 ,  F04B39/121 ,  F04B39/123 ,  F04B39/125 ,  F04B53/007 ,  F04B53/16 ,  F16L41/021

摘要： The present invention discloses a Fluid End and its manufacturing method. The conventional fluid end manufacturing methods involve machining of all surfaces.This demands more input stock for manufacturing process and a lot of material wastage during machining process. In the conventional processes involving open die forging followed by machining result into only about 34% utilization of material. In the present invention, fluid end component geometry is optimized. Assembly surfaces are machined whereas other or non-assembly surfaces are as-forged condition. The method of invention also results in significant reduction in machining time and chip removal. The present invention also discloses a process of manufacturing using a combination of open die and closed die forging, and machining. It involves the steps of cogging an ingot to form billet for closed die forging using open die forging, forging the billet in closed die using forging equipment, semi-finish/rough/partial machining, heat treatment, drilling and finish machining the component. Most of the non-assembly areas of the fluid end are left in as-forged condition.

公开(公告)号：US11433493B2

公开(公告)日：2022-09-06

申请号：US15779786

申请日：2016-12-01

申请人： Bharat Forge Limited ,  Babasaheb Neelkanth Kalyani ,  Madan Umakant Takale ,  Vijaykumar Hanumantrao Khasnis ,  Amol Raghunathrao Deshmukh

发明人： Babasaheb Neelkanth Kalyani ,  Madan Umakant Takale ,  Vijaykumar Hanumantrao Khasnis ,  Amol Raghunathrao Deshmukh

IPC分类号： B21K1/26 ,  B23P15/50 ,  C21D9/00 ,  F04B53/00 ,  F04B53/16 ,  F16L41/02 ,  F04B1/053 ,  F04B27/053 ,  F04B39/12 ,  B23P15/00 ,  C21D7/13 ,  B21J5/02

摘要： The present invention discloses a Fluid End and its manufacturing method. The conventional fluid end manufacturing methods involve machining of all surfaces. This demands more input stock for manufacturing process and a lot of material wastage during machining process. In the conventional processes involving open die forging followed by machining result into only about 34% utilization of material. In the present invention, fluid end component geometry is optimized. Assembly surfaces are machined whereas other or non-assembly surfaces are as-forged condition. The method of invention also results in significant reduction in machining time and chip removal. The present invention also discloses a process of manufacturing using a combination of open die and closed die forging, and machining. It involves the steps of cogging an ingot to form billet for closed die forging using open die forging, forging the billet in closed die using forging equipment, semi-finish/rough/partial machining, heat treatment, drilling and finish machining the component. Most of the non-assembly areas of the fluid end are left in as-forged condition.

公开(公告)号：US20170369976A1

公开(公告)日：2017-12-28

申请号：US15520849

申请日：2015-10-21

申请人： Babasaheb Neelkanth KALYANI ,  Madan Umakant TAKALE ,  Prakasam Balachandran GNANA ,  Rajkumar Prasad SINGH ,  Abhay Ramchandra CHAUTHAI ,  Suresh Babu ARANGI ,  Rajesh Surendra MANE ,  Kumar DHARMESH ,  Srinivas PERLA ,  Vinayak Pralhad PAWAR ,  Shital Shahaji JADHAV ,  BHARAT FORGE LIMITED ,  KALYANI CARPENTER SPECIAL STEELS LIMITED

发明人： Babasaheb Neelkanth Kalyani ,  Madan Umakant Takale ,  Prakasam Balachandran Gnana ,  Rajkumar Prasad Singh ,  Abhay Ramchandra Chauthai ,  Suresh Babu Arangi ,  Rajesh Surendra Mane ,  Dharmesh Kumar ,  Srinivas Perla ,  Vinayak Pralhad Pawar ,  Shital Shahaji Jadhav

IPC分类号： C22C38/28 ,  C22C38/22 ,  C22C38/02 ,  C21D8/02 ,  C22C38/26 ,  C22C38/04 ,  C21D1/30

CPC分类号： C22C38/28 ,  C21D1/30 ,  C21D7/13 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D2211/002 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26

摘要： The present invention disclosed an ultra-high strength steel for structural components, a process of making such steel that has a desirable microstructure in the thermo-mechanically processed and differently cooled conditions that delivers high fatigue performance in service, and a process of making forged components using such steel. The steel and the process of its manufacturing enables manufacture of components that exhibit bainitic microstructure that impart ultra-high strength ranges with very high fatigue performance. The invention enables saving in alloying additives compared to hardened and tempered alloy steels and in addition avoid expensive heat treatment operations to achieve the desired range of mechanical properties. The steel of the invention is a suitable replacement for micro alloyed steel or heat treated steel bars used for structural component development. The steel can be used for applied as the hot rolled and air cooled long products that can be directly used for applications or it can be directly hot forged in open or closed die forging followed by controlled cooling to achieve the desired microstructure and range of mechanical properties.