Optimization of quenching process in hot stamping of boron alloyed steel / (Record no. 5597)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02845ntm a2200241 a 4500 |
| 001 - CONTROL NUMBER | |
| control field | vtls000082945 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | KUKTEM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20251117113245.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 141104t2013 my da f m 000 0 eng|d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER | |
| International Standard Book Number | THE0005913(Local) |
| 039 #9 - LEVEL OF BIBLIOGRAPHIC CONTROL AND CODING DETAIL [OBSOLETE] | |
| Level of rules in bibliographic description | 201905141427 |
| Level of effort used to assign nonsubject heading access points | aida |
| Level of effort used to assign subject headings | 201411050952 |
| Level of effort used to assign classification | training2 |
| -- | 201411041116 |
| -- | training2 |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | UMP |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | TA478 .N39 2013 r Bc. |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mohd Nazeri Mohd Annuar |
| 245 10 - TITLE STATEMENT | |
| Title | Optimization of quenching process in hot stamping of boron alloyed steel / |
| Statement of responsibility, etc. | Mohd Nazeri Mohd Annuar |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Kuantan, Pahang : |
| Name of publisher, distributor, etc. | UMP, |
| Date of publication, distribution, etc. | 2013 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | xiv, 51 p. : |
| Other physical details | ill. (some col.) ; |
| Dimensions | 30 cm. + |
| Accompanying material | 1 CD-ROM |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Project Paper (Bachelor of Mechanical Engineering (Automotive)) -- Universiti Malaysia Pahang – 2013 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography : p. 52-54 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | This thesis explained the effect of quenching process parameters in hot press forming that has been used in automotive industry to manufacture metallic parts with high specific strengths. Optimum cooling system need to be considered during the quenching process in hot stamping to achieve the highest strength. The material that had been used in this hot press forming process was boron alloyed steel (22MnB5) that will produce the highest martensite content after being hot stamped. After being heated in the furnace up to 950 0C until 10 minutes, the specimens were pressed at 40 bar by using the hydraulic power press and quenched. The investigations were studied on the microstructure and its hardness properties. Every specimen was prepared for the mechanical testing. To get the optimum parameters, ANOVA were used by using the full factorial design. The responses were studied on hardness value. The result shows that by increasing the quenching time and flow rate will increase the hardness value of the specimen while lowering the coolant temperature will increase the hardness value. The heat transfers by conduction were optimum during the pressure holding time process so the optimum cooling systems hardly effect the formation of the blank. The value of hardness are directly proportional with the formation of martensitic microstructure but it was impossible to achieve a fully martensite structure after the blank being hot stamped. The formation of martensite was due to the heating of the blank until its austenite phase and rapid cooling that make the carbon atom stretch along one direction. Besides martensite structure, the formation of bainite and retained austenite structure also appeared after the blank being hot stamped. to achieve an optimum hardness value up to 551.3 HV0.5, the specimen should be quenched at 7 second with the flow rate of 40 L/min and coolant temperature of 27 0C. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Steel alloys |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Not lost | Not for loan | UMPLIB PEKAN | UMPLIB PEKAN | 04/09/2019 | TA478 .N39 2013 r Bc. | 0000086460 | 04/09/2019 | 1 | 04/09/2019 | Final Year Report | |||
| Not lost | Not for loan | UMPLIB PEKAN | UMPLIB PEKAN | 04/09/2019 | CD 8170 | TA478 .N39 2013 r Bc. | 0000086461 | 04/09/2019 | 1 | 04/09/2019 | Final Year Report |