FIELD: deformation and thermal processing of materials in mechanical engineering, airplane engine building and medicine for manufacture of semi-finished products from titanium.
SUBSTANCE: method involves intensive plastic deformation with accumulated logarithmic extent of deformation e≥4 and following thermomechanical processing provided by alternatively effectuated cold deformation at the extent of 30-90% and intermediate and final annealing in temperature range of 250-5000C for 0.5-2.0 hours. Intensive plastic deformation of blank is performed by passing blank through die with helical channel of section extending perpendicular to pressing axis and uniform along the entire length of said axis. Inclination angle of helical line to pressing angle is variable along length or height of die and has zero value at its leading and tail parts.
EFFECT: increased strength and plastic characteristics of material under process.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF ULTRA-FINE-GRAINED TITANIUM BLANKS | 2000 |
|
RU2175685C1 |
| METHOD OF PRODUCING TITANIUM ROUND RODS WITH ULTRAFINE STRUCTURE | 2011 |
|
RU2464116C1 |
| METHOD OF THERMO-MECHANICAL TREATMENT OF TITANIUM BLANKS | 2005 |
|
RU2285737C1 |
| METHOD FOR MAKING ULTRAFINE-GRAIN TITANIUM BLANKS | 2003 |
|
RU2251588C2 |
| METHOD OF PRODUCTION OF ULTRAFINE-GRAINED TITANIUM WORK PIECES | 2014 |
|
RU2583551C2 |
| METHOD TO PRODUCE SUB MICRO-CRYSTALLINE STRUCTURE IN UNALLOYED TITANIUM | 2008 |
|
RU2389568C1 |
| METHOD OF THERMOMECHANICAL TREATMENT OF WORKPIECES FROM TWO-PHASE TITANIUM ALLOYS | 2011 |
|
RU2469122C1 |
| METHOD FOR PRODUCING BLANKS FROM COMMERCIALLY PURE TITANIUM WITH GRAIN SIZE LESS THAN 0,4 MICRON | 2015 |
|
RU2622536C2 |
| METHOD OF MANUFACTURING UFG SECTIONS FROM TITANIUM ALLOYS | 2007 |
|
RU2364660C1 |
| PROCESSING METHOD OF LARGE-SIZED WORKPIECES FROM TITANIUM ALLOYS | 2010 |
|
RU2439195C1 |
