US20210170463A1 - Extrusion forming apparatus, method using the same, and product therefrom - Google Patents
Extrusion forming apparatus, method using the same, and product therefrom Download PDFInfo
- Publication number
- US20210170463A1 US20210170463A1 US17/114,590 US202017114590A US2021170463A1 US 20210170463 A1 US20210170463 A1 US 20210170463A1 US 202017114590 A US202017114590 A US 202017114590A US 2021170463 A1 US2021170463 A1 US 2021170463A1
- Authority
- US
- United States
- Prior art keywords
- extrusion forming
- mold
- ingot
- extruding
- forming apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/004—Extruding metal; Impact extrusion using vibratory energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
- B21C23/142—Making profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/06—Press heads, dies, or mandrels for coating work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/003—Cooling or heating of work
Definitions
- the disclosure relates to a forming apparatus, and more particularly to an extrusion forming apparatus, a method using the same and the product manufactured therefrom.
- a linear slide is typically a sliding type conveying component used for a machine tool or semiconductor equipment. Except some large size linear slides made of aluminum alloy to reduce weight, most of linear slides are made from steel. Because steel is a hardly formable material, it is usually processed by rolling, drawing, annealing, followed by a small amount of machining to form a linear slide. Such a multi-step manufacturing process is complicated and inefficient. An alternative process utilizes a large amount of machining to machine and form a metal ingot into a linear slide. This manufacturing process produces a large amount of scrap, decreases material usage rate, and increases manufacturing costs.
- one object of the disclosure is to provide an extrusion forming apparatus capable of extrusion forming a hardly formable metal.
- an extrusion forming apparatus includes a housing, a mold, an extruding rod, a holding seat, and a vibrating source.
- the housing has an extruding channel.
- the mold is disposed in the extruding channel and located at a front open end of the extruding channel.
- the extruding rod is movably disposed in the extruding channel.
- a front end of the extruding rod is disposed in a rearward of the mold.
- the holding seat is disposed in front of the housing.
- the holding seat has a rear end partially extending into the extruding channel and abuts against the mold.
- the vibrating source is controllable to apply an ultrasonic wave energy to the mold through the holding seat.
- Another object of this disclosure is to provide an extrusion forming method by using the extrusion forming apparatus.
- an extrusion forming method of the disclosure includes: preheating an ingot; activating the vibrating source of the extrusion forming apparatus; placing the ingot in the extruding channel of the housing; and operating the extruding rod to press forwardly the ingot so that the ingot is extruded through and shaped by the mold wherein an ultrasonic wave energy of the vibrating source is applied to the ingot through the mold.
- Still another object of this disclosure is to provide an extruded product made by the method using the extrusion forming apparatus.
- an extruded product of the disclosure comprises a U-shaped channel made of steel, which includes a longitudinal base wall and two longitudinal left and right walls extending upwardly from two opposite ends of the longitudinal base wall and spaced apart from each other.
- the longitudinal left and right walls and the longitudinal base wall define a longitudinal groove.
- FIG. 1 is a sectional view illustrating an extrusion forming apparatus according to an embodiment of the disclosure
- FIGS. 2 to 5 illustrate consecutive steps carried out in an extrusion forming method using the extrusion forming apparatus for extruding an ingot
- FIG. 7 is a perspective view illustrates an extruded product made by the method using the extrusion forming apparatus.
- FIG. 1 illustrates an extrusion forming apparatus 1 according to an embodiment of the disclosure for extruding and shaping an ingot 2 .
- the ingot 2 is made of a hardly formable material.
- the hardly formable material may be a high strength, high hardness steel or other similar metallic material.
- the extrusion forming apparatus 1 includes a housing 11 , a mold 12 , an extruding rod 13 , a pressing plate 14 , a holding seat 15 , and a vibrating source 16 .
- the mold 12 is disposed in the extruding channel 111 and at a front open end of the extruding channel 111 .
- the mold 12 has a shaping hole 121 that is defined by a flat bottom boundary surface 122 , two spaced-apart flat left and right boundary surfaces 124 extending upwardly from the flat bottom boundary surface 122 , and a U-shaped boundary surface 123 that connects between the flat left and right boundary surfaces 124 oppositely of the flat bottom boundary surface 122 .
- the mold 12 allows passage of the ingot 2 such that the ingot 2 is shaped by the shaping hole 121 .
- the extruding rod 13 is movably disposed in the extruding channel 111 .
- a front end of the extruding rod 13 is disposed in a rearward of the mold 12 .
- the extruding rod 13 is driven by an actuator (not shown, e.g., a hydraulic cylinder) to move forwardly to the mold 12 . Because moving the extruding rod 13 with the actuator is generally known in the art, further detail will not be provided herein.
- the pressing plate 14 is disposed between the extruding rod 13 and the mold 12 in the extruding channel 111 .
- a pressing space 17 is formed between the pressing plate 14 and the mold 12 .
- the holding seat 15 is disposed in front of the front open end of the extruding channel 111 .
- the holding seat 15 has a rear end partially extending into the extruding channel 111 and abuts against the mold 12 .
- the mold 12 impregnated with a water glass is placed in the extruding channel 111 and abuts against the holding seat 15 .
- the vibrating source 16 When the vibrating source 16 is activated to vibrate, the vibrating source 16 applies an ultrasonic wave energy to the holding seat 15 .
- the vibration frequency of the vibrating source 16 ranges between 20 and 32 KHz.
- the holding seat 15 transmits the vibration to the mold 12 through a contact interface therebetween. Due to the vibration, the water glass is evenly spread on the mold 12 to increase lubricity.
- the ingot 2 is made of a medium carbon steel, e.g., S45C. However, the ingot 2 may be made of other carbon steels, or titanium or nickel-based alloys.
- the ingot 2 is coated with glass sand before being placed in the extruding channel 111 .
- the ingot 2 is placed in the extruding channel 111 .
- the pressing plate 14 is disposed in the extruding channel 111 ; the ingot 2 is disposed in the pressing space 17 between the pressing plate 14 and the mold 12 .
- the ultrasonic vibration generated from the vibrating source 16 is transmitted through the mold 12 to the ingot 2 .
- the glass sand is evenly spread on the ingot 2 to increase lubricity.
- the extruding rod 13 is placed in the extruding channel 111 and operated to push forward the pressing plate 14 .
- the pressing space 17 is therefore reduced, and the ingot 2 is pressed and extruded through the mold 12 and shaped by the mold 12 , thereby forming a raw extruded linear slide.
- the ultrasonic vibration generated from the vibrating source 16 can reduce the yield stress of the ingot 2 , increase formability, and reduce surface oxidation and decarburization of the ingot 2 .
- the ultrasonic vibration can reduce friction and deformation resistance.
- FIG. 7 illustrates an extruded product 3 made by the extrusion forming method using the extrusion forming apparatus 1 .
- the extruded product 3 in this embodiment is a linear slide, and comprises a U-shaped channel made of steel.
- the extruded product 3 includes a longitudinal base wall 31 and two longitudinal left and right walls 32 extending upwardly from two opposite ends of the longitudinal base wall 31 and spaced apart from each other.
- the longitudinal left and right walls 32 and the longitudinal base wall 31 define a longitudinal groove 321 .
- the longitudinal base wall 31 and the longitudinal left and right walls 32 have outer surfaces that are flat, and inner surfaces that cooperate to form a contoured surface of U-shape.
- the extruded product 3 may be provided with a complicated contoured surface, such as a dentate surface, or a multi-curved surface. Therefore, hardly formable steel products may have a wide range of shapes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
Description
- This application claims priority to Taiwanese Invention Patent Application No. 108144901, filed on Dec. 9, 2019.
- The disclosure relates to a forming apparatus, and more particularly to an extrusion forming apparatus, a method using the same and the product manufactured therefrom.
- A linear slide is typically a sliding type conveying component used for a machine tool or semiconductor equipment. Except some large size linear slides made of aluminum alloy to reduce weight, most of linear slides are made from steel. Because steel is a hardly formable material, it is usually processed by rolling, drawing, annealing, followed by a small amount of machining to form a linear slide. Such a multi-step manufacturing process is complicated and inefficient. An alternative process utilizes a large amount of machining to machine and form a metal ingot into a linear slide. This manufacturing process produces a large amount of scrap, decreases material usage rate, and increases manufacturing costs.
- Therefore, one object of the disclosure is to provide an extrusion forming apparatus capable of extrusion forming a hardly formable metal.
- According to the disclosure, an extrusion forming apparatus includes a housing, a mold, an extruding rod, a holding seat, and a vibrating source.
- The housing has an extruding channel.
- The mold is disposed in the extruding channel and located at a front open end of the extruding channel.
- The extruding rod is movably disposed in the extruding channel. A front end of the extruding rod is disposed in a rearward of the mold.
- The holding seat is disposed in front of the housing. The holding seat has a rear end partially extending into the extruding channel and abuts against the mold.
- The vibrating source is controllable to apply an ultrasonic wave energy to the mold through the holding seat.
- Another object of this disclosure is to provide an extrusion forming method by using the extrusion forming apparatus.
- Accordingly an extrusion forming method of the disclosure includes: preheating an ingot; activating the vibrating source of the extrusion forming apparatus; placing the ingot in the extruding channel of the housing; and operating the extruding rod to press forwardly the ingot so that the ingot is extruded through and shaped by the mold wherein an ultrasonic wave energy of the vibrating source is applied to the ingot through the mold.
- Still another object of this disclosure is to provide an extruded product made by the method using the extrusion forming apparatus.
- Accordingly, an extruded product of the disclosure comprises a U-shaped channel made of steel, which includes a longitudinal base wall and two longitudinal left and right walls extending upwardly from two opposite ends of the longitudinal base wall and spaced apart from each other. The longitudinal left and right walls and the longitudinal base wall define a longitudinal groove.
- Other features and advantages of the disclosure will become apparent in the following detailed description of the embodiment with reference to the accompanying drawings, of which:
-
FIG. 1 is a sectional view illustrating an extrusion forming apparatus according to an embodiment of the disclosure; -
FIGS. 2 to 5 illustrate consecutive steps carried out in an extrusion forming method using the extrusion forming apparatus for extruding an ingot; -
FIG. 6 illustrates the ingot pressed and shaped through a mold of the extrusion forming apparatus by the extrusion forming method; -
FIG. 7 is a perspective view illustrates an extruded product made by the method using the extrusion forming apparatus; and -
FIG. 8 is a front view illustrate the mold of the extrusion forming apparatus. -
FIG. 1 illustrates anextrusion forming apparatus 1 according to an embodiment of the disclosure for extruding and shaping aningot 2. Theingot 2 is made of a hardly formable material. The hardly formable material may be a high strength, high hardness steel or other similar metallic material. Theextrusion forming apparatus 1 includes ahousing 11, amold 12, anextruding rod 13, apressing plate 14, aholding seat 15, and a vibratingsource 16. - The
housing 11 has anextruding channel 111. - The
mold 12 is disposed in theextruding channel 111 and at a front open end of theextruding channel 111. As shown inFIG. 8 , themold 12 has ashaping hole 121 that is defined by a flatbottom boundary surface 122, two spaced-apart flat left andright boundary surfaces 124 extending upwardly from the flatbottom boundary surface 122, and aU-shaped boundary surface 123 that connects between the flat left andright boundary surfaces 124 oppositely of the flatbottom boundary surface 122. Themold 12 allows passage of theingot 2 such that theingot 2 is shaped by theshaping hole 121. - The extruding
rod 13 is movably disposed in theextruding channel 111. A front end of the extrudingrod 13 is disposed in a rearward of themold 12. The extrudingrod 13 is driven by an actuator (not shown, e.g., a hydraulic cylinder) to move forwardly to themold 12. Because moving theextruding rod 13 with the actuator is generally known in the art, further detail will not be provided herein. - The
pressing plate 14 is disposed between theextruding rod 13 and themold 12 in theextruding channel 111. Apressing space 17 is formed between thepressing plate 14 and themold 12. - The
holding seat 15 is disposed in front of the front open end of theextruding channel 111. Theholding seat 15 has a rear end partially extending into theextruding channel 111 and abuts against themold 12. - The vibrating
source 16 is fixed to a front end of thehousing 11 and abuts against theholding seat 15. The vibratingsource 16 is controllable to apply an ultrasonic wave energy to themold 12 through theholding seat 15. - In order for extruding the
ingot 2, an extrusion forming method using theextrusion forming apparatus 1 is described below. - As shown in
FIG. 2 , theextrusion forming apparatus 1 is in a preliminary state, where theingot 2 and thehousing 11 are preheated. Before being preheated, theingot 2 is polished and sandblasted, and is coated with a high temperature lubricant. In this preliminary state, only thehousing 11, theholding seat 15, and the vibratingsource 16 are assembled together. - Referred to
FIG. 3 , themold 12 impregnated with a water glass is placed in theextruding channel 111 and abuts against theholding seat 15. When the vibratingsource 16 is activated to vibrate, the vibratingsource 16 applies an ultrasonic wave energy to theholding seat 15. The vibration frequency of the vibratingsource 16 ranges between 20 and 32 KHz. Theholding seat 15 transmits the vibration to themold 12 through a contact interface therebetween. Due to the vibration, the water glass is evenly spread on themold 12 to increase lubricity. In this embodiment, theingot 2 is made of a medium carbon steel, e.g., S45C. However, theingot 2 may be made of other carbon steels, or titanium or nickel-based alloys. - The
ingot 2 is coated with glass sand before being placed in theextruding channel 111. Afterwards, as shown inFIG. 4 , theingot 2 is placed in theextruding channel 111. Subsequently, as shown inFIG. 5 , thepressing plate 14 is disposed in the extrudingchannel 111; theingot 2 is disposed in thepressing space 17 between thepressing plate 14 and themold 12. The ultrasonic vibration generated from the vibratingsource 16 is transmitted through themold 12 to theingot 2. As such , the glass sand is evenly spread on theingot 2 to increase lubricity. - As shown in
FIG. 6 , the extrudingrod 13 is placed in the extrudingchannel 111 and operated to push forward the pressingplate 14. Thepressing space 17 is therefore reduced, and theingot 2 is pressed and extruded through themold 12 and shaped by themold 12, thereby forming a raw extruded linear slide. - During the extrusion of the
ingot 2 through themold 12, the ultrasonic vibration generated from the vibratingsource 16 can reduce the yield stress of theingot 2, increase formability, and reduce surface oxidation and decarburization of theingot 2. In addition, the ultrasonic vibration can reduce friction and deformation resistance. By virtue of the vibratingsource 16, the extrusion forming method of the disclosure can overcome prior art problems in extrusion-forming hardly formable steels having high deformation resistance. -
FIG. 7 illustrates an extrudedproduct 3 made by the extrusion forming method using theextrusion forming apparatus 1. The extrudedproduct 3 in this embodiment is a linear slide, and comprises a U-shaped channel made of steel. The extrudedproduct 3 includes alongitudinal base wall 31 and two longitudinal left andright walls 32 extending upwardly from two opposite ends of thelongitudinal base wall 31 and spaced apart from each other. The longitudinal left andright walls 32 and thelongitudinal base wall 31 define alongitudinal groove 321. Thelongitudinal base wall 31 and the longitudinal left andright walls 32 have outer surfaces that are flat, and inner surfaces that cooperate to form a contoured surface of U-shape. In other embodiments, the extrudedproduct 3 may be provided with a complicated contoured surface, such as a dentate surface, or a multi-curved surface. Therefore, hardly formable steel products may have a wide range of shapes. - In the description above, for the purposes of explanation, numerous specific details have been set forth in order to provide a thorough understanding of the embodiment. It will be apparent, however, to one skilled in the art, that one or more other embodiments maybe practiced without some of these specific details. It should also be appreciated that reference throughout this specification to “one embodiment,” “an embodiment,” an embodiment with an indication of an ordinal number and so forth means that a particular feature, structure, or characteristic may be included in the practice of the disclosure. It should be further appreciated that in the description, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of various inventive aspects, and that one or more features or specific details from one embodiment may be practiced together with one or more features or specific details from another embodiment, where appropriate, in the practice of the disclosure.
- While the disclosure has been described in connection with what is considered the exemplary embodiment, it is understood that this disclosure is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW108144901 | 2019-12-09 | ||
TW108144901A TWI706817B (en) | 2019-12-09 | 2019-12-09 | Extrusion device and extrusion method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
US20210170463A1 true US20210170463A1 (en) | 2021-06-10 |
Family
ID=74091671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/114,590 Abandoned US20210170463A1 (en) | 2019-12-09 | 2020-12-08 | Extrusion forming apparatus, method using the same, and product therefrom |
Country Status (2)
Country | Link |
---|---|
US (1) | US20210170463A1 (en) |
TW (1) | TWI706817B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115972465A (en) * | 2022-11-27 | 2023-04-18 | 西北工业大学 | Device and method for preparing flat-plate-shaped prefabricated body with unidirectional short fiber distribution |
CN116603884A (en) * | 2023-03-31 | 2023-08-18 | 郑州大学 | Sheath extrusion method of copper-based alloy |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201618869A (en) * | 2014-11-28 | 2016-06-01 | Metal Ind Res & Dev Ct | Manufacturing method of steel section bar, extrusion device, and steel billet |
TWI542419B (en) * | 2014-12-02 | 2016-07-21 | Metal Ind Res & Dev Ct | Composite pipe and its manufacturing method |
-
2019
- 2019-12-09 TW TW108144901A patent/TWI706817B/en active
-
2020
- 2020-12-08 US US17/114,590 patent/US20210170463A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115972465A (en) * | 2022-11-27 | 2023-04-18 | 西北工业大学 | Device and method for preparing flat-plate-shaped prefabricated body with unidirectional short fiber distribution |
CN116603884A (en) * | 2023-03-31 | 2023-08-18 | 郑州大学 | Sheath extrusion method of copper-based alloy |
Also Published As
Publication number | Publication date |
---|---|
TW202122173A (en) | 2021-06-16 |
TWI706817B (en) | 2020-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20210170463A1 (en) | Extrusion forming apparatus, method using the same, and product therefrom | |
CN101422861B (en) | Accurate forming method of special-shape deep-hole type parts | |
JP6053558B2 (en) | Method for manufacturing molded article of extruded material press | |
US9505048B2 (en) | Pipe manufacturing method and hydroforming mold thereof | |
CN102000825A (en) | Method for manufacturing driving gear of motorcycle clutch | |
CN103157759A (en) | Cylindrical gear warm-cold combined precision forging plastic molding process | |
CN104858254A (en) | 35CrMo steel thick-walled tube vertical backward extrusion method, and extrusion die thereof | |
TW201323109A (en) | Method for manufacturing magnesium alloy | |
JP2006289453A (en) | Press forming method, and forming device | |
CN110125318A (en) | A kind of forging technology of new-energy automobile monoblock type screw compressor scroll plate | |
Mori et al. | Two-stage cold stamping of magnesium alloy cups having small corner radius | |
CN104046863B (en) | The preparation method of big flakiness ratio ultra-high strength and toughness aluminum alloy plate materials | |
JP2010000515A (en) | Forging method of magnesium alloy | |
JP2004276078A (en) | Method and apparatus for partial strengthening of metallic material | |
CN112974558B (en) | Extrusion apparatus, extrusion method thereof and product thereof | |
JPS58181450A (en) | Manufacture of thick-walled gear or the like | |
KR100538897B1 (en) | Maching of sheet without removal of material | |
TWI530385B (en) | Fracturing Extrusion Device, Extrusion Extrusion Machine and Extrusion Method | |
JP2017202519A (en) | Hot stamping processing of age hardening type aluminum alloy plate | |
RU2349436C1 (en) | Method for manufacture of die blocks for extrusion of pipe ends | |
CN106862476B (en) | A kind of forging method of the large-scale aluminum matrix composite fan blade fine forge piece of aviation | |
JP4771380B2 (en) | Magnesium alloy precision forging method | |
SU1225640A1 (en) | Die for finish moulding of semicylinders | |
JPH07214226A (en) | Deep hole part made of austenitic stainless steel and its manufacture | |
JP2010247188A (en) | Method for manufacturing outer-ring for constant-velocity joint |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: METAL INDUSTRIES RESEARCH AND DEVELOPMENT CENTRE, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHAO, SHUN-YU;REEL/FRAME:054571/0938 Effective date: 20201202 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |