CN111774624A - Surface milling method for 6061 aluminum alloy flat ingot - Google Patents
Surface milling method for 6061 aluminum alloy flat ingot Download PDFInfo
- Publication number
- CN111774624A CN111774624A CN202010707755.0A CN202010707755A CN111774624A CN 111774624 A CN111774624 A CN 111774624A CN 202010707755 A CN202010707755 A CN 202010707755A CN 111774624 A CN111774624 A CN 111774624A
- Authority
- CN
- China
- Prior art keywords
- milling
- ingot
- aluminum alloy
- alloy flat
- face
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
Abstract
A 6061 aluminum alloy flat ingot surface milling method. The invention belongs to the field of alloy ingot manufacturing, and particularly relates to a 6061 aluminum alloy flat ingot surface milling method. The invention aims to solve the problem that the existing method can completely mill the large and small-surface old skins only by milling the surface of a 6061 aluminum alloy flat ingot for at least 4 times, so that the production efficiency is low. The 6061 aluminum alloy flat ingot is prepared by batching, smelting and semi-continuous casting. According to the invention, the mode of straight milling and surface milling is added during ingot surface milling, the side milling angle is adjusted and the surface milling amount is reasonably selected, so that the surface milling production efficiency is doubled, and the process yield reaches more than 94%. The invention is suitable for milling the surface of the aluminum alloy flat ingot.
Description
Technical Field
The invention belongs to the field of alloy ingot manufacturing, and particularly relates to a 6061 aluminum alloy flat ingot surface milling method.
Background
The surface of the flat aluminum alloy ingot produced by semi-continuous casting inevitably has the defects of looseness, shrinkage cavities, air holes, slag inclusion, segregation tumors, cold shut and the like in different degrees, and the defects can be removed only by milling the surface of the ingot, so that the defects or waste products such as edge cracking, cracks, peeling, rough surface, slag inclusion on the surface, broken belt and the like cannot be generated in the subsequent rolling process of the ingot. The face milling of the 6061 aluminum alloy 420X 1620 flat ingot produced by the prior semi-continuous casting adopts a hexahedron face milling method, the yield of the face milling process is low, and the yield of the process is 82.5%.
The conventional surface milling method only comprises side milling and large surface milling, the requirement can be met only by milling four times at least when the large and small surfaces are completely milled and qualified, the quality requirement can be met only by milling 2 times when the large surface is milled according to the normal requirement, the small surface always has black skin residue at the intersection angle and the shoulder angle due to the large circular arc, the quality requirement can be met only by milling 4 times, and the production efficiency is seriously influenced.
Disclosure of Invention
The invention provides a 6061 aluminum alloy flat ingot face milling method, aiming at solving the problem that the production efficiency is low because the large and small face old skins can be completely milled only by milling the face of the 6061 aluminum alloy flat ingot face for at least 4 times in the existing method.
The invention relates to a 6061 aluminum alloy flat ingot surface milling method which is specifically completed according to the following steps:
firstly, preparing before milling: presetting the feed amounts of a large-face milling cutter, a left-side milling cutter, a right-side milling cutter and a straight milling cutter, and simultaneously setting the milling face angles of the left-side milling cutter and the right-side milling cutter; after setting is finished, placing the 6061 aluminum alloy flat ingot on a milling machine workbench for centering and clamping, and measuring the length, the width and the thickness of the 6061 aluminum alloy flat ingot;
secondly, first milling the cast ingot: respectively milling the small faces on two sides, the upper surface and the small face on one side of the 6061 aluminum alloy flat ingot by a milling machine, and obtaining an ingot after the first milling after the whole ingot is milled;
thirdly, preparing before milling the surface again: after the first surface milling is finished, quickly returning the milling machine workbench, conveying the ingot subjected to the first surface milling to an ingot overturning mechanism, overturning for 180 degrees to obtain an overturned ingot, conveying the ingot to the milling machine workbench again, centering and clamping, and measuring the length, the width and the thickness of the ingot;
fourthly, milling the cast ingot again: and respectively milling the small surfaces on two sides, the upper surface and the small surface on one side of the inverted cast ingot by using a milling machine, and finishing milling the surface of the 6061 aluminum alloy flat cast ingot after the whole cast ingot is milled.
The invention has the beneficial effects that:
1. according to the invention, a straight milling mode is added and a side milling angle is increased during ingot surface milling, and the original hexahedron surface milling mode is changed into an octahedron surface milling mode, so that the surface milling amount of the small surface is reduced, the process yield is improved, and the process yield is improved from 82.5% to more than 94%.
2. According to the invention, a straight milling mode is added and a side milling angle is increased when the surface of the cast ingot is milled, so that the problem that the black skin residue at the intersection angle and the shoulder angle of the cast ingot needs to be milled more can be solved, the cast ingot can be milled completely by milling for 2 times, and the production efficiency is greatly improved.
Drawings
FIG. 1 is a photograph of an as-cast 6061 aluminum alloy flat ingot of example 1;
FIG. 2 is a photograph of an ingot after surface milling by a conventional surface milling method;
FIG. 3 is a photograph of an ingot after being milled using the method described in example 1;
FIG. 4 is a schematic cross-sectional view of a flat 6061 aluminum alloy ingot; wherein, the point A represents the intersection line of the large-surface milling surface quantity and the small surface, and the point B represents the position of (the length of the circular arc of the small surface-2 multiplied by the large-surface milling surface quantity)/3.
Detailed Description
The first embodiment is as follows: the 6061 aluminum alloy flat ingot surface milling method is specifically completed according to the following steps:
secondly, preparing before milling the surface: presetting the feed amounts of a large-face milling cutter, a left-side milling cutter, a right-side milling cutter and a straight milling cutter, and simultaneously setting the milling face angles of the left-side milling cutter and the right-side milling cutter; after setting is finished, placing the 6061 aluminum alloy flat ingot on a milling machine workbench for centering and clamping, and measuring the length, the width and the thickness of the 6061 aluminum alloy flat ingot;
secondly, first milling the cast ingot: respectively milling the small faces on two sides, the upper surface and the small face on one side of the 6061 aluminum alloy flat ingot by a milling machine, and obtaining an ingot after the first milling after the whole ingot is milled;
thirdly, preparing before milling the surface again: after the first surface milling is finished, quickly returning the milling machine workbench, conveying the ingot subjected to the first surface milling to an ingot overturning mechanism, overturning for 180 degrees to obtain an overturned ingot, conveying the ingot to the milling machine workbench again, centering and clamping, and measuring the length, the width and the thickness of the ingot;
fourthly, milling the cast ingot again: and respectively milling the small surfaces on two sides, the upper surface and the small surface on one side of the inverted cast ingot by using a milling machine, and finishing milling the surface of the 6061 aluminum alloy flat cast ingot after the whole cast ingot is milled.
The milling machine model adopted by the embodiment is an XKL2422/L70 numerical control gantry ingot casting combined milling machine.
In the present embodiment, a flat 6061 aluminum alloy ingot is produced by semi-continuous casting.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the specification of the 6061 aluminum alloy flat ingot in the first step is 420mm multiplied by 1620mm multiplied by (2000-7200) mm. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: in the first step, the feed amount of the large-face milling cutter is 5mm, the feed amount of the left-side milling cutter is 10mm, the feed amount of the right-side milling cutter is 10mm, and the feed amount of the straight milling cutter is 12 mm; the milling surface angle of the left side milling cutter is 22 degrees, and the milling surface angle of the right side milling cutter is 22 degrees. The other is the same as in the first or second embodiment.
In the embodiment, the large-surface milling amount, the side milling amount and the straight milling amount are set according to design requirements, so that the milling amount is the minimum on the premise that the large and small surfaces of the cast ingot after surface milling have no defects such as looseness, shrinkage cavities, air holes, slag inclusion, segregation lumps, cold shut and the like.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: in the step one, the length, the width and the thickness are measured by a set of measuring system respectively arranged at the front end, the middle part and the tail end of the 6061 aluminum alloy flat ingot, and the measuring system is arranged above a milling machine workbench and corresponds to the position of a milling head. The others are the same as in one of the first to third embodiments.
In this embodiment, the measurement system is a siemens 840D numerical control system.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: in the second step, the sequence of the first face milling is as follows: firstly, side milling is carried out on small faces on two sides of a 6061 aluminum alloy flat ingot at the same time, then large-face milling is carried out on the upper surface of the 6061 aluminum alloy flat ingot, and finally, straight milling is carried out on small faces on one side of the 6061 aluminum alloy flat ingot. The other is the same as one of the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is: and in the second step, the rotating speed of the side milling cutter is 1450r/min, the rotating speed of the large face milling cutter is 595r/min, the rotating speed of the straight milling cutter is 1450r/min, and the feeding speed of the milling machine workbench is 3200 mm/min. The other is the same as one of the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: and in the third step, the return speed of the quick return of the milling machine workbench is 20000 mm/min. The other is the same as one of the first to sixth embodiments.
The specific implementation mode is eight: the present embodiment differs from one of the first to seventh embodiments in that: in the third step, the ingot-turning mechanism can rotate 180 degrees in a positive and negative way, and the position control is ensured by mechanical positioning. The other is the same as one of the first to seventh embodiments.
The specific implementation method nine: the present embodiment differs from the first to eighth embodiments in that: in the fourth step, the order of milling the surface of the cast ingot again is as follows: firstly, side milling is carried out on small faces on two sides of the inverted ingot at the same time, then large face milling is carried out on the upper surface of the inverted ingot, and finally, straight milling is carried out on the small face on one side of the inverted ingot. The rest is the same as the first to eighth embodiments.
The beneficial effects of the present invention are demonstrated by the following examples:
example 1: the 6061 aluminum alloy flat ingot surface milling method is specifically completed according to the following steps:
preparing before milling: presetting the feed amount of a large-face milling cutter to be 5mm, the feed amount of a left-side milling cutter to be 10mm, the feed amount of a right-side milling cutter to be 10mm, the feed amount of a straight milling cutter to be 12mm, and simultaneously setting the milling face angle of the left-side milling cutter to be 22 degrees and the milling face angle of the right-side milling cutter to be 22 degrees; after setting is finished, placing the 6061 aluminum alloy flat ingot on a milling machine workbench for centering and clamping, and measuring the length, the width and the thickness of the 6061 aluminum alloy flat ingot; the specification of the 6061 aluminum alloy flat ingot is 420mm multiplied by 1620 mm;
secondly, first milling the cast ingot: firstly, side milling small faces on two sides of a 6061 aluminum alloy flat ingot by a milling machine, then carrying out large-face milling on the upper surface of the 6061 aluminum alloy flat ingot, finally carrying out straight milling on the small face on one side of the 6061 aluminum alloy flat ingot, and obtaining an ingot after the first face milling after the whole ingot is milled;
thirdly, preparing before milling the surface again: after the first surface milling is finished, quickly returning the milling machine workbench at the returning speed of 20000mm/min, conveying the ingot subjected to the first surface milling to an ingot overturning mechanism, overturning for 180 degrees to obtain an overturned ingot, conveying the ingot to the milling machine workbench again, centering and clamping, and measuring the length, the width and the thickness of the ingot;
fourthly, milling the cast ingot again: firstly, side milling is carried out on small faces on two sides of the inverted ingot by a milling machine, then large face milling is carried out on the upper surface of the inverted ingot, finally, straight milling is carried out on the small face on one side of the inverted ingot, and after the whole ingot is milled, the face milling of the 6061 aluminum alloy flat ingot is finished.
As can be seen from fig. 1, 2 and 3, the ingot after the surface milling by the conventional surface milling method is a hexahedron, and the ingot after the surface milling by the method of the present embodiment is an octahedron, it is obvious that the loss of the milled surface after the surface milling by the method of the present embodiment is reduced, the yield of the process is improved, and the surface of the ingot after the surface milling twice has no defect.
In the embodiment, the side milling angle is obtained by measurement, the measurement mode is shown in fig. 4, and fig. 4 is a schematic sectional view of a 6061 aluminum alloy flat ingot. As shown in FIG. 4, point A represents the intersection of the large face milling surface and the facet, point B represents the position (the length of the arc of the facet-2X the large face milling surface)/3, and the side milling angle can be measured by an angle meter.
The specification of the 6061 aluminum alloy flat ingot subjected to face milling in the embodiment is 410mm multiplied by 1596mm, the weight of the ingot before milling is 9000Kg, the weight of the ingot after milling is 8565Kg, and the yield of the process is 95.2%.
Claims (9)
1. A6061 aluminum alloy flat ingot face milling method is characterized in that the 6061 aluminum alloy flat ingot face milling method is specifically completed according to the following steps:
firstly, preparing before milling: presetting the feed amounts of a large-face milling cutter, a left-side milling cutter, a right-side milling cutter and a straight milling cutter, and simultaneously setting the milling face angles of the left-side milling cutter and the right-side milling cutter; after setting is finished, placing the 6061 aluminum alloy flat ingot on a milling machine workbench for centering and clamping, and measuring the length, the width and the thickness of the 6061 aluminum alloy flat ingot;
secondly, first milling the cast ingot: respectively milling the small faces on two sides, the upper surface and the small face on one side of the 6061 aluminum alloy flat ingot by a milling machine, and obtaining an ingot after the first milling after the whole ingot is milled;
thirdly, preparing before milling the surface again: after the first surface milling is finished, quickly returning the milling machine workbench, conveying the ingot subjected to the first surface milling to an ingot overturning mechanism, overturning for 180 degrees to obtain an overturned ingot, conveying the ingot to the milling machine workbench again, centering and clamping, and measuring the length, the width and the thickness of the ingot;
fourthly, milling the cast ingot again: and respectively milling the small surfaces on two sides, the upper surface and the small surface on one side of the inverted cast ingot by using a milling machine, and finishing milling the surface of the 6061 aluminum alloy flat cast ingot after the whole cast ingot is milled.
2. The method for milling the face of the 6061 aluminum alloy flat ingot according to the claim 1, wherein the specification of the 6061 aluminum alloy flat ingot in the first step is 420mm x 1620mm x (2000-7200) mm.
3. The method for milling the 6061 aluminum alloy flat ingot according to claim 1, wherein in the first step, the feed of the large-face milling cutter is 5mm, the feed of the left-side milling cutter is 10mm, the feed of the right-side milling cutter is 10mm, and the feed of the straight milling cutter is 12 mm; the milling surface angle of the left side milling cutter is 22 degrees, and the milling surface angle of the right side milling cutter is 22 degrees.
4. The method for milling the face of the 6061 aluminum alloy flat ingot as claimed in claim 1, wherein the length, the width and the thickness in the step one are measured by a set of measuring systems respectively arranged at the front end, the middle part and the tail end of the 6061 aluminum alloy flat ingot, and the measuring systems are arranged above a workbench of a milling machine and correspond to the position of the milling head.
5. The method for milling the 6061 aluminum alloy flat ingot according to claim 1, wherein the first milling in the second step is performed in the following sequence: firstly, side milling is carried out on small faces on two sides of a 6061 aluminum alloy flat ingot at the same time, then large-face milling is carried out on the upper surface of the 6061 aluminum alloy flat ingot, and finally, straight milling is carried out on small faces on one side of the 6061 aluminum alloy flat ingot.
6. The 6061 aluminum alloy flat ingot face milling method according to claim 5, wherein in the second step, the rotating speed of a cutter head for side milling is 1450r/min, the rotating speed of a cutter head for large face milling is 595r/min, the rotating speed of a cutter head for straight milling is 1450r/min, and the feeding speed of a milling machine workbench is 3200 mm/min.
7. The method for milling the face of the 6061 aluminum alloy flat ingot casting as claimed in claim 1, wherein the quick return speed of the milling machine workbench in the third step is 20000 mm/min.
8. The method for milling the face of the 6061 aluminum alloy flat ingot casting as claimed in claim 1, wherein in the third step, the ingot turning mechanism can rotate by 180 degrees in a positive and negative mode, and the position control is ensured by mechanical positioning.
9. The method for milling the face of the 6061 aluminum alloy flat ingot as claimed in claim 1, wherein the order of milling the face of the ingot again in the fourth step is as follows: firstly, side milling is carried out on small faces on two sides of the inverted ingot at the same time, then large face milling is carried out on the upper surface of the inverted ingot, and finally, straight milling is carried out on the small face on one side of the inverted ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707755.0A CN111774624A (en) | 2020-07-21 | 2020-07-21 | Surface milling method for 6061 aluminum alloy flat ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707755.0A CN111774624A (en) | 2020-07-21 | 2020-07-21 | Surface milling method for 6061 aluminum alloy flat ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111774624A true CN111774624A (en) | 2020-10-16 |
Family
ID=72765007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010707755.0A Pending CN111774624A (en) | 2020-07-21 | 2020-07-21 | Surface milling method for 6061 aluminum alloy flat ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111774624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309743A (en) * | 2022-01-28 | 2022-04-12 | 宁波江丰电子材料股份有限公司 | Milling method for directly visible crystal grains of pure aluminum cast ingot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1248069A (en) * | 1967-12-15 | 1971-09-29 | Cincinnati Milling Machine Co | Manufacturing apparatus |
| CN203696585U (en) * | 2013-12-11 | 2014-07-09 | 山东永盛新材料科技有限公司 | Milling chip collecting device |
| CN204321271U (en) * | 2014-12-12 | 2015-05-13 | 河南科源电子铝箔有限公司 | Deburred instrument in the process of a kind of aluminum-sheet ingot milling face |
| CN105382616A (en) * | 2014-08-28 | 2016-03-09 | Sms米尔股份有限公司 | Milling device for aluminum ingots |
-
2020
- 2020-07-21 CN CN202010707755.0A patent/CN111774624A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1248069A (en) * | 1967-12-15 | 1971-09-29 | Cincinnati Milling Machine Co | Manufacturing apparatus |
| CN203696585U (en) * | 2013-12-11 | 2014-07-09 | 山东永盛新材料科技有限公司 | Milling chip collecting device |
| CN105382616A (en) * | 2014-08-28 | 2016-03-09 | Sms米尔股份有限公司 | Milling device for aluminum ingots |
| CN204321271U (en) * | 2014-12-12 | 2015-05-13 | 河南科源电子铝箔有限公司 | Deburred instrument in the process of a kind of aluminum-sheet ingot milling face |
Non-Patent Citations (1)
| Title |
|---|
| 郭金龙: "现代铸锭铣床与铣面工艺", 《铝加工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309743A (en) * | 2022-01-28 | 2022-04-12 | 宁波江丰电子材料股份有限公司 | Milling method for directly visible crystal grains of pure aluminum cast ingot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106002088B (en) | A kind of blended wing-body entirety bay section manufacturing method | |
| CN105269277B (en) | A kind of aero-engine compressor circle-arc tooth tenon blade machining process | |
| CN109112446B (en) | Precision casting forming method for large-scale thin-wall high-strength aluminum alloy double-cone rhombic integral cabin shell | |
| CN104404508A (en) | Laser additive manufacturing method for aluminium alloy structural part | |
| CN104759625A (en) | Material and method for preparing aluminum alloy structural member by using laser 3D (Three-Dimensional) printing technology | |
| CN105772812B (en) | The axle mirror image milling numerical-control processing method of monolithic molding bottom five | |
| CN109317616A (en) | 3 D tropism can essence control high temperature alloy single crystal blade seed crystal preparation method | |
| CN111774624A (en) | Surface milling method for 6061 aluminum alloy flat ingot | |
| CN109530690B (en) | Method for improving forming precision of synchronous powder feeding additive manufacturing | |
| CN109822302A (en) | Knuckle vertical pulling lever arm processing technology | |
| CN209098845U (en) | A kind of 3 D tropism can essence control high temperature alloy Casting Equipment | |
| CN101733619A (en) | Production technology of large round steel | |
| WO2024021218A1 (en) | Tantalum-tungsten alloy product and preparation method therefor | |
| CN101987349B (en) | Casting technology of stainless steel hydroelectric runner lower ring | |
| CN208575550U (en) | A kind of processing curve bearing shell tile fragment dedicated positioning device | |
| Xu et al. | Complex-shaped metal parts high efficiency sawing with diamond wire | |
| CN207205183U (en) | The superplastic forming of the thicker face split casting such as a kind of/diffusion joint forming mould | |
| CN100457345C (en) | Plastic spliced half concave die molded lines working method | |
| CN218111438U (en) | Silica gel mold processing device based on 3D printing | |
| RU2348479C2 (en) | Pouring practice of rail steel at engine of continuous casting of blanks | |
| CN113732624B (en) | Vertical material increasing and decreasing composite manufacturing method of closed impeller | |
| CN109480415B (en) | Jewelry 3D printing molding method | |
| CN108637369B (en) | Broaching machine tool for finishing spigot of V-shaped diesel engine cylinder body and machining method thereof | |
| CN213796168U (en) | Special tool for precisely machining mold core for automobile die-casting mold | |
| CN216621048U (en) | Dimension measuring tool for thin shell die forging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |