CN114147116B - Method for machining nickel alloy cylindrical part with large diameter-thickness ratio - Google Patents

Method for machining nickel alloy cylindrical part with large diameter-thickness ratio Download PDF

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CN114147116B
CN114147116B CN202111458773.0A CN202111458773A CN114147116B CN 114147116 B CN114147116 B CN 114147116B CN 202111458773 A CN202111458773 A CN 202111458773A CN 114147116 B CN114147116 B CN 114147116B
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laser
spinning
cylinder blank
heating mechanism
cylindrical part
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CN114147116A (en
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何道广
谢晗
蔺永诚
晏鑫滔
陈世冰
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Central South University
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Central South University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/16—Spinning over shaping mandrels or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/008—Processes combined with methods covered by groups B21D1/00 - B21D31/00 involving vibration, e.g. ultrasonic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
    • B23K28/02—Combined welding or cutting procedures or apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention provides a spinning device and a processing method for a nickel alloy cylindrical part with a large diameter-thickness ratio, which relate to the field of material spinning and comprise the following steps: a chuck for holding a core mold, wherein the core mold is cylindrical and is used for sleeving a cylinder blank; the first laser heating mechanism is annularly arranged at the outer edge of the core mold and used for heating and extruding the outer surface of the cylinder blank, the laser heating mechanism comprises an ultrasonic generator, the ultrasonic generator is electrically connected with an ultrasonic transducer, the ultrasonic transducer is also connected with an amplitude transformer, one end, far away from the ultrasonic transducer, of the amplitude transformer is sleeved with a rotary wheel for extrusion, and the end, close to the rotary wheel, of the amplitude transformer is provided with a first laser nozzle for heating; the second laser heating mechanism is arranged in the core mould and heats from the inner surface direction of the core mould, the vibration of ultrasonic waves is introduced to strengthen the movable dislocation multiplication/migration, the friction behavior of the spinning wheel and the cylinder blank is improved, and the generation of forming defects can be inhibited.

Description

Method for machining nickel alloy cylindrical part with large diameter-thickness ratio
Technical Field
The invention relates to the field of material spinning, in particular to a spinning device and a processing method for a nickel alloy cylindrical part with a large diameter-thickness ratio.
Background
The nickel-based alloy is a common material, is widely applied to the fields of aviation, nuclear industry, energy, electric power and the like, and aims at nickel-based alloy thin-wall cylindrical parts, the current forming mode comprises the following steps: and carrying out coil welding forming and spinning forming on the plate. The nickel-based alloy cylindrical part manufactured by the plate roll welding forming process has the defects of air holes, inclusions and the like easily generated at the welding seam, and the comprehensive performance of the component is greatly influenced. The spinning forming is a near-net precision plastic forming technology which utilizes the feed motion of a spinning wheel to pressurize a component to generate continuous local plastic deformation; because the nickel-based alloy has the characteristics of large deformation resistance, high alloying degree, larger resilience degree and the like, in the traditional spinning forming process, the nickel-based alloy cylindrical piece is easy to generate forming defects such as bulging, peeling and the like, the grain structure is difficult to uniformly refine, the second phase is difficult to uniformly distribute and other microstructure regulation difficulties are difficult, and the improvement of the component performance is greatly limited.
In the prior art, the requirements of surface quality and forming precision of a nickel-based alloy cylindrical part need to be met when the nickel-based alloy cylindrical part is manufactured; on the other hand, the production process needs to be simplified as much as possible, the production efficiency needs to be improved, and the production cost needs to be reduced, so that the industrial production is facilitated; for the hot forming of the nickel-based alloy, the control difficulty of the heating mode and the forming quality is higher; however, the wall thickness uniformity cannot be ensured by drawing.
Disclosure of Invention
The invention provides a spinning device and a processing method for a nickel alloy cylindrical part with a large diameter-thickness ratio, and aims to solve the problems that the uniformity of the wall thickness of the nickel alloy cylindrical part with the large diameter-thickness ratio cannot be ensured in the spinning process and the forming defect is easy to generate.
In order to achieve the above object, an embodiment of the present invention provides a spinning apparatus for a nickel alloy cylindrical member with a large aspect ratio, including:
the chuck clamps a core mold, the core mold is cylindrical, and the core mold is used for sleeving a cylinder blank;
the first laser heating mechanism is annularly arranged on the outer edge of the core mold and used for heating and extruding the outer surface of the cylinder blank, the laser heating mechanism comprises an ultrasonic generator, the ultrasonic generator is electrically connected with an ultrasonic transducer, the ultrasonic transducer is also connected with an amplitude transformer, one end, far away from the ultrasonic transducer, of the amplitude transformer is sleeved with a rotary wheel for extrusion, and the end, close to the rotary wheel, of the amplitude transformer is provided with a first laser nozzle for heating;
and a second laser heating mechanism which is provided in the core mold and heats the core mold from the inner surface direction thereof.
Preferably, the number of the first laser heating mechanisms is at least three, and the spinning wheels are arranged at intervals in the axial direction and the radial direction of the mandrel.
Preferably, the second laser heating mechanism includes a second laser nozzle and a laser heater holder, and three of the second laser nozzles are disposed inside the core mold through the laser heater holder.
Preferably, the first laser heating mechanism further comprises a first coupler and a second coupler, one end of the first coupler is connected with a bearing, the other end of the first coupler is connected with the ultrasonic transducer, the other end of the bearing is connected with the amplitude transformer, the other end of the amplitude transformer is connected with the second coupler, and the other end of the second coupler is connected with a connecting rod for mounting the spinning wheel and the first laser nozzle.
The application also provides a method for processing the nickel alloy cylindrical part with the large diameter-thickness ratio, which comprises the following steps:
s1, manufacturing a cylinder blank, and sleeving the cylinder blank on a core mold;
s2, mounting a second laser heating mechanism to the inside of the core mold, and annularly arranging a first laser heating mechanism at the outer edge of the cylinder body;
s3, setting the temperatures of the first laser nozzle and the second laser nozzle according to the spinning forming temperature required by the cylinder blank, and heating the cylinder blank and the core mold;
s4, starting a spinning machine and an ultrasonic generator, wherein the spinning machine moves along the axial direction of the core mold;
s5, repeating the steps S3-S4 until the cylinder blank is completely spun into a cylinder.
Preferably, in step S1, the cylindrical blank is rolled from a plate material into a cylindrical shape and formed by a composite method of friction stir welding and electric pulse welding.
Preferably, the pulse current frequency, the square root current density and the peak current density are required to be set in the electric pulse welding, wherein the pulse current frequency is 60 Hz-150 Hz, and the square root current density is 10A/mm 2 ～30 A/mm 2 Peak current density of 200A/mm 2 ～400A/mm 2 。
Preferably, the friction stir welding needs to set a welding speed and a rotation speed of a stirring head, wherein the welding speed is 20 mm/min-400 mm/min; the rotating speed of the stirring head is 500 r/min-2500 r/min.
Preferably, in step S3, the power of the first laser nozzle and the power of the second laser nozzle are 50W to 500W, and the diameter of a single laser spot is 2mm to 20 mm.
Preferably, in the step S4, the amplitude of the ultrasonic generator is 2 μm to 100 μm, and the ultrasonic frequency is 10kHz to 50 kHz.
The scheme of the invention has the following beneficial effects:
the method introduces the vibration of ultrasonic waves to strengthen the movable dislocation multiplication/migration, improves the friction behavior of the spinning wheel and the cylinder blank, can inhibit the generation of forming defects, further improves the surface quality and the forming precision of the processed cylinder, and can also improve the forming limit and the organization performance of the material under the action of a thermal-force-ultrasonic vibration composite physical field.
Drawings
FIG. 1 is a top view of a spinning apparatus for a large aspect ratio nickel alloy cylindrical member;
fig. 2 is a longitudinal schematic view of a second laser heating mechanism.
1-chuck, 2-core mold, 21-stop ring, 3-first laser heating mechanism, 31-ultrasonic generator, 32-ultrasonic transducer, 33-amplitude transformer, 34-rotary wheel, 35-first laser nozzle, 36-first coupling, 37-second coupling, 38-bearing, 4-second laser heating mechanism, 41-second laser nozzle and 42-laser heater support.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, an embodiment of the present invention provides a spinning apparatus for a nickel alloy cylindrical part with a large diameter-thickness ratio, which includes a chuck 1, wherein the chuck 1 is disposed on a spinning machine, a core mold 2 is clamped on the chuck 1, the core mold 2 is cylindrical, a stop ring 21 is further disposed on one side of the core mold 2 close to the chuck 1, the stop ring 21 is mounted on the core mold 2 in an interference fit manner, and the core mold 2 is used for sleeving a cylindrical blank. The stop ring 21 not only can restrict the relative position of cylinder blank and mandrel 2, but also has the effect of preventing the cylinder blank to jump in the footpath, and this application still includes first laser heating mechanism 3, and first laser heating mechanism 3 encircles the outer fringe of establishing at mandrel 2. The first laser heating mechanism 3 comprises an ultrasonic generator 31, the ultrasonic generator 31 is electrically connected with an ultrasonic transducer 32, the ultrasonic transducer 32 is further connected with an amplitude transformer 33, one end, far away from the ultrasonic transducer 32, of the amplitude transformer 33 is sleeved with a spinning wheel 34 for pressurization, and one end, close to the spinning wheel 34, of the amplitude transformer 33 is further provided with a first laser nozzle 35.
In the application, the ultrasonic generator 31 generates high-frequency vibration, and transmits the vibration to the rotary wheel 34 through the ultrasonic transducer 32 and the amplitude transformer 33, so that the rotary wheel 34 raps the cylinder blank through high frequency, and the first laser nozzle 35 heats the cylinder blank in combination, so that the heated area of the cylinder blank extrudes point by point, the crystal grains are prevented from being uniformly refined, and the residual second phase is dispersed and refined. The ultrasonic vibration strengthens the multiplication/migration of movable dislocation, improves the friction behavior of the spinning wheel 34 and the surface of a spinning piece, inhibits the generation of forming defects, greatly improves the surface quality and the forming precision of the processed cylindrical piece, and improves the mechanisms of dynamic recovery, dynamic recrystallization and the like in a forming area of a thermal-force-ultrasonic vibration composite physical field, thereby refining the grain structure and improving the forming limit and the structure performance of the processed cylindrical piece.
The application also comprises a second laser heating mechanism 4, wherein the second laser heating mechanism 4 comprises a second laser nozzle 41 and a laser heater support 42, and the second laser heating mechanism 4 is deeply inserted into the core mold 2 and is heated from inside to outside.
Through addding second laser heating mechanism 4, can reduce the cylinder blank and pass through the inhomogeneous and cylinder blank microstructure's that produces of the radial temperature of material that the 2 heat transfer of mandrel lead to inhomogeneities, further assurance cylinder blank shaping precision and comprehensive properties can reduce subsequent heat treatment process again, have played the effect of saving the cost.
Further, in order to ensure the heating and rapping effects of the first laser heating mechanism 3, the first laser heating mechanism 3 is provided with three, and the three first laser heating mechanisms 3 are arranged on the neck of the core mold 2 at intervals in the axial direction, so that the uniformity in the machining process is ensured. Specifically, three first laser heating mechanisms 3 are arranged in the circumferential direction of the core mold 2 at an included angle of 120 °, and the distances from the first laser heating mechanisms 3 to the stopper ring 21 are different. Correspondingly, three second laser nozzles 41 are provided, and it is ensured that the first laser nozzle 35 and the second laser nozzle 41 heat the same area at the same time.
The first laser heating mechanism 3 further comprises a first coupler 36 and a second coupler 37, one end of the first coupler 36 is connected with a bearing 38, the other end of the first coupler is connected with the ultrasonic transducer 32, the other end of the bearing 38 is connected with the amplitude transformer 33, the other end of the amplitude transformer 33 is connected with the second coupler 37, and the other end of the second coupler 37 is connected with a connecting rod for mounting the rotary wheel 34 and the first laser nozzle 35.
The first laser heating mechanism 3 is used for transmitting power through the first coupling 36 and the second coupling 37, and the amplitude of the connecting rod can be transmitted and changed through the use of the first coupling 36 and the second coupling 37, so that the rotary wheel 34 is ensured to have different amplitudes to adapt to different rapping requirements.
Based on the thought of the thermal-force-ultrasonic vibration composite physical field, the application also provides a method for processing the nickel alloy cylindrical part with the large diameter-thickness ratio, which comprises the following steps,
s1, manufacturing a cylinder blank according to the requirement of a design structure, and sleeving the cylinder blank on the core mold 2;
s2, arranging the first laser heating mechanism 3 on the outer edge of the cylinder blank, and installing the second laser heating mechanism 4 into the core mold 2 to ensure the same heating area of the first laser nozzle 35 and the second laser nozzle 41;
s3 setting the spinning temperature required for the cylinder blank to the temperatures of the first laser nozzle 35 and the second laser nozzle 41, and heating the cylinder blank core mold 2;
s4 starts the spinning machine and the ultrasonic generator 31 and drives the spinning machine to move synchronously in the direction of the core mold 2.
S5 steps S3-S4 are repeated until the cylindrical blank is spun into a cylinder.
In step S1, the cylindrical blank is formed by curling a nickel alloy plate, and is welded by friction stir welding and electric pulse welding in a combined manner, and the friction stir welding and electric pulse welding are combined to form the cylindrical blank, so that the deformation resistance of the material at the weld joint can be reduced, the microstructure can be optimized, the generation of defects of pores and inclusions can be further inhibited, and a preparation for subsequently improving the forming accuracy and the comprehensive performance of the cylindrical part can be made.
In the aforementioned step S1, the plate material is made by the volume invariance principle according to the design structure requirement.
In step S1, the frequency of the pulse current in the electric pulse welding is 60 Hz-150 Hz, and the square root current density is 10A/mm 2 ～30A/mm 2 Peak current density of 200A/mm 2 ～400A/mm 2 . The welding speed in the friction stir welding is 20 mm/min-400 mm/min; the rotating speed of the stirring head is 500 r/mm-2500 r/mm.
Further, the power of the first laser nozzle 35 and the second laser nozzle 41 in step S3 is 50W to 500W, and the diameter of the single laser spot is 2mm to 20 mm. In step S4, the amplitude of the ultrasonic generator 31 is 2 μm to 100 μm, and the ultrasonic frequency is 10kHz to 50 kHz.
The present application further provides two embodiments, wherein embodiment 1 is:
1. the material is a nickel-based alloy hastelloy C276 material, the wall thickness T of a processed cylindrical part is required to be 0.45 mm, the outer diameter D of the processed cylindrical part is required to be 200mm, the height L of the processed cylindrical part is required to be 600mm, and the thickness T of a haynes C276 plate is selected through theoretical analysis based on the principle that the volume is unchanged 0 3.5mm, width W 0 80mm and 630 mm.
2. The hastelloy C276 plate is welded into a cylinder blank by a composite mode of friction stir welding and electric pulse welding, wherein the pulse current frequency is 100Hz, and the square root current density is 15A/mm 2 The peak current density is 250A/mm 2 (ii) a Selecting the parameters of the friction stir welding as follows: the welding speed is as follows: 30mm/min, and the rotation speed of the stirring head is 1000 r/min.
3. Fitting a cylindrical body blank onto the core mold 2 and assembling the cylindrical bodyThe blank contacts with the rotary wheel 34, the first laser heating mechanism 3, the second laser heating mechanism 4 is arranged outside the cylinder blank and inside the core mould 2 separately; opening the first laser heating mechanism 3 and the second laser heating mechanism 4 to heat the blank and the inner wall of the core mold 2, selecting the laser power of 100W and the diameter of a single laser spot of 5mm, and heating the temperature to 850 DEG O C。
4. Starting the ultrasonic vibration generator, and selecting the parameters of the ultrasonic vibration generator as follows: the ultrasonic amplitude is 10 μm, and the ultrasonic frequency is 20 kHz; starting a spinning machine, selecting a spinning feed ratio of 0.6mm/r, an axial offset amount of 2.5mm, a main shaft rotating speed n of 100r/min, and adopting three times of thinning, wherein the pass thinning rates are respectively 33%, 35% and 32%; and extruding the heating area of the cylinder blank point by a rotary wheel 34, uniformly refining the grain structure and dispersing and refining the residual second phase.
5. And after each pass is finished, repeating the steps 2, 3 and 4 until the nickel-based alloy hastelloy C276 cylindrical part is subjected to spinning forming, thus obtaining the thin-wall hastelloy C276 cylindrical part with the large diameter-thickness ratio, which meets the forming precision and the structural performance requirements.
Example 2
1. The material is nickel-based alloy hastelloy C276 material, the wall thickness T of a processed cylinder blank is required to be 0.8m, the outer diameter d is required to be 150mm, the length l is required to be 550mm, and the thickness T of a haynes C276 plate is selected based on the principle of volume invariance and combined with theoretical analysis 0 3.0mm, width W 0 73mm and 472 mm.
2. The hastelloy C276 plate is welded into a cylindrical blank by a composite mode of friction stir welding and electric pulse welding, the pulse current frequency is selected to be 110Hz, and the square root current density is selected to be 16A/mm 2 The peak current density is 250A/mm 2 (ii) a Selecting the parameters of the friction stir welding as follows: the welding speed is as follows: 25mm/min, and the rotation speed of the stirring head is 1500 r/min.
3. The cylindrical body blank is assembled on the core mold 2 and contacts with the spinning roller 34, and the first laser heating mechanism 3 and the second laser heating mechanism 4 are respectively arranged on the outer side of the cylindrical body blank and the inner side of the core mold 2; opening the first laser heating mechanism 3 and the second laser heating mechanism 4 to make circles alignHeating the cylinder blank and the inner wall of the core mould 2, selecting the laser power of 100W and the diameter of a single laser spot of 5mm, and heating to 850 DEG O C。
4. Starting the ultrasonic vibration generator, and selecting the parameters of the ultrasonic vibration generator as follows: the ultrasonic amplitude is 10 μm, and the ultrasonic frequency is 20 kHz; starting a spinning machine, selecting a spinning feed ratio of 0.8mm/r, an axial offset amount of 2.5mm, a main shaft rotating speed n of 100r/min, and thinning by three times, wherein the pass thinning rates are respectively 30%, 35% and 35%; and extruding the heating area of the cylinder blank point by a rotary wheel 34, uniformly refining the grain structure and dispersing and refining the residual second phase.
5. And after each pass is finished, repeating the steps 2, 3 and 4 until the nickel-based alloy hastelloy C276 cylindrical part is subjected to spinning forming, thus obtaining the thin-wall hastelloy C276 cylindrical part with the large diameter-thickness ratio, which meets the forming precision and the structural performance requirements.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (4)

1. A method for processing a nickel alloy cylindrical part with a large diameter-thickness ratio adopts a spinning device for the nickel alloy cylindrical part with the large diameter-thickness ratio, and is characterized in that:
the spinning device for the nickel alloy cylindrical part with the large diameter-thickness ratio comprises: the chuck (1) is used for clamping a core die (2), the core die (2) is cylindrical, and the core die (2) is used for sleeving a cylinder blank;
the first laser heating mechanism (3) is annularly arranged on the outer edge of the core die (2) and used for heating and extruding the outer surface of a cylinder blank, the laser heating mechanism comprises an ultrasonic generator (31), the ultrasonic generator (31) is electrically connected with an ultrasonic transducer (32), the ultrasonic transducer (32) is also connected with an amplitude transformer (33), one end, far away from the ultrasonic transducer (32), of the amplitude transformer (33) is sleeved with a spinning wheel (34) for extrusion, and a first laser nozzle (35) for heating is arranged at the end part, close to the spinning wheel (34), of the amplitude transformer (33);
a second laser heating means (4) which is provided in the core mold (2) and heats the core mold (2) from the inner surface direction thereof;
the number of the first laser heating mechanisms (3) is at least three, and the spinning wheels (34) are arranged at intervals in the axial direction and the radial direction of the core mould (2);
the second laser heating mechanism (4) comprises a second laser nozzle (41) and laser heater supports (42), and the three second laser nozzles (41) are arranged inside the core mould (2) through the laser heater supports (42);
the first laser heating mechanism (3) further comprises a first coupler (36) and a second coupler (37), one end of the first coupler (36) is connected with a bearing (38), the other end of the first coupler is connected with the ultrasonic transducer (32), the other end of the bearing (38) is connected with the amplitude transformer (33), the other end of the amplitude transformer (33) is connected with the second coupler (37), and the other end of the second coupler (37) is connected with a connecting rod for mounting a spinning wheel (34) and a first laser nozzle (35);
the method for processing the nickel alloy cylindrical part with the large diameter-thickness ratio comprises the following steps:
s1, manufacturing a cylinder blank, sleeving the cylinder blank on a core mold (2), and in the step S1, curling the cylinder blank into a cylindrical shape from a plate and forming the cylinder blank in a composite mode of friction stir welding and electric pulse welding;
s2, mounting a second laser heating mechanism (4) to the inside of the core mold (2), and annularly arranging a first laser heating mechanism (3) on the outer edge of the cylinder;
s3, setting the temperature of a first laser nozzle (35) and the temperature of a second laser nozzle (41) according to the spinning forming temperature required by the cylinder blank, and heating the cylinder blank and the core mold;
s4, starting a spinning machine and an ultrasonic generator (31), wherein the spinning machine moves along the axial direction of the core mold (2);
s5, repeating the steps S3-S4 until the cylinder blank is spun into a cylindrical piece;
the pulse current frequency, the square root current density and the peak current density are required to be set in the electric pulse welding, wherein the pulse current frequency is 60Hz-150 Hz, square root current density of 10A/mm 2 ～30A/mm 2 Peak current density of 200A/mm 2 ～400A/mm 2 。
2. The method for processing the nickel alloy cylindrical part with the large diameter-thickness ratio as claimed in claim 1, wherein the method comprises the following steps: setting the welding speed and the rotating speed of a stirring head in the friction stir welding, wherein the welding speed is 20-400 mm/min; the rotating speed of the stirring head is 500 r/min-2500 r/min.
3. The method for processing the nickel alloy cylindrical part with the large diameter-thickness ratio as claimed in claim 1, wherein the method comprises the following steps: in the step S3, the power of the first laser nozzle (35) and the second laser nozzle (41) is 50W-500W, and the diameter of a single laser spot is 2 mm-20 mm.
4. The method for processing the nickel alloy cylindrical part with the large diameter-thickness ratio as claimed in claim 1, wherein the method comprises the following steps: in the step S4, the amplitude of the ultrasonic generator (31) is 2-100 μm, and the ultrasonic frequency is 10-50 kHz.
CN202111458773.0A 2021-12-01 2021-12-01 Method for machining nickel alloy cylindrical part with large diameter-thickness ratio Active CN114147116B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003236627A (en) * 2002-02-19 2003-08-26 Honda Motor Co Ltd Sequential forming method
JP2005118835A (en) * 2003-10-17 2005-05-12 Spc:Kk Warm spinning method, spinning machine, bottomed thin-walled cylindrical body and thin-walled cylindrical body
CN203778555U (en) * 2014-04-15 2014-08-20 西安交通大学 Rotation complex-part multi-direction vibration increment type rolling and rotating forming device
CN104249116A (en) * 2013-06-27 2014-12-31 上海新力动力设备研究所 Inner heating device for hot spinning mandrel
CN104259288A (en) * 2014-09-01 2015-01-07 山东科技大学 Ultrasonic spinning device and method used for rim of thickened disk-shaped plate blank
CN104438536A (en) * 2014-12-09 2015-03-25 太原理工大学 Ultrasound spinning forming technique for magnesium alloy cylinders

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003236627A (en) * 2002-02-19 2003-08-26 Honda Motor Co Ltd Sequential forming method
JP2005118835A (en) * 2003-10-17 2005-05-12 Spc:Kk Warm spinning method, spinning machine, bottomed thin-walled cylindrical body and thin-walled cylindrical body
CN104249116A (en) * 2013-06-27 2014-12-31 上海新力动力设备研究所 Inner heating device for hot spinning mandrel
CN203778555U (en) * 2014-04-15 2014-08-20 西安交通大学 Rotation complex-part multi-direction vibration increment type rolling and rotating forming device
CN104259288A (en) * 2014-09-01 2015-01-07 山东科技大学 Ultrasonic spinning device and method used for rim of thickened disk-shaped plate blank
CN104438536A (en) * 2014-12-09 2015-03-25 太原理工大学 Ultrasound spinning forming technique for magnesium alloy cylinders

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