CN111717291B - Vehicle engine front cover, manufacturing method thereof and vehicle with same - Google Patents
Vehicle engine front cover, manufacturing method thereof and vehicle with same Download PDFInfo
- Publication number
- CN111717291B CN111717291B CN201910203625.0A CN201910203625A CN111717291B CN 111717291 B CN111717291 B CN 111717291B CN 201910203625 A CN201910203625 A CN 201910203625A CN 111717291 B CN111717291 B CN 111717291B
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- China
- Prior art keywords
- layer
- plate layer
- front cover
- damping
- steel plate
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000013016 damping Methods 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 48
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000032798 delamination Effects 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 238000005457 optimization Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/12—Parts or details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
Abstract
The application provides a front cover of a vehicle engine, a manufacturing method of the front cover and a vehicle with the front cover. The vehicle engine front cover includes: the damping layer is arranged on the steel plate layer; the aluminum plate layer is arranged on the side facing the engine, and the steel plate layer is arranged on the side facing away from the engine; the steel plate layer, the damping layer and the aluminum plate layer are bonded with each other and are riveted and fixed through rivets penetrating through the steel plate layer, the damping layer and the aluminum plate layer. According to the vehicle engine front cover, the manufacturing method thereof and the vehicle with the same, the steel plate layer, the damping layer and the aluminum plate layer are bonded and riveted at the same time, so that the NVH performance of the engine is effectively improved, the bonding and fixing capacity among the plate layers is improved, and the delamination phenomenon of the damping layer is avoided; on the other hand, the manufacturing cost is also greatly reduced.
Description
Technical Field
The present application relates to the field of vehicles, and more particularly, to a front engine cover for a vehicle and a method of manufacturing the same.
Background
Through research on the percentage of the radiation sound power of the engine in all directions in the idle state to the radiation sound power of the whole engine, the front-end noise of the engine accounts for about 25% of the whole noise of the engine and is one of the main sources of the whole noise of the engine.
At present, the conventional cast aluminum front cover or the conventional stamped front cover is difficult to effectively reduce the noise at the front end of the engine. And because the composite damping front cover is attached with the damping material, the sound loss factor of the composite damping front cover is several times higher than that of the conventional structure, the noise at the front end of the engine can be obviously reduced, the vibration is inhibited, and the NVH performance of the engine is improved.
Based on the aforementioned effects of the composite damping front cover, the application of the composite damping steel plate instead of the conventional covering part of the engine has been adopted in the prior art, and the composite damping steel plate is usually manufactured by adopting a hot pressing process. The process needs professional hot-pressing equipment, the cost is extremely high, the process cannot completely avoid the delamination problem of the damping material, and once the damping material is delaminated, the noise reduction effect is greatly influenced.
Disclosure of Invention
In view of the above, the present application provides a vehicle engine front cover, a method of manufacturing the same, and a vehicle having the same, which effectively solve or at least alleviate one or more of the above problems and other problems in the prior art.
According to one aspect of the present application, there is provided a vehicle engine front cover, comprising: the damping layer is arranged on the steel plate layer; the aluminum plate layer is arranged on the side facing the engine, and the steel plate layer is arranged on the side facing away from the engine; the steel plate layer, the damping layer and the aluminum plate layer are bonded with each other and are riveted and fixed through rivets penetrating through the steel plate layer, the damping layer and the aluminum plate layer.
Optionally, the thickness of the steel plate layer is 1 mm; and/or the thickness of the aluminum plate layer is 2 mm; and/or the thickness of the damping layer is 0.2-0.5 mm.
Optionally, the steel sheet layer is manufactured by stamping a stainless steel sheet or a galvanized steel sheet; and/or the aluminium sheet layer is manufactured by cast aluminium alloy stamping; and/or the damping layer is made of a viscoelastic resin.
Optionally, a sealant is coated on a riveted point of the rivet penetrating through the steel plate layer, the damping layer and the aluminum plate layer.
Optionally, comprising: the riveting point is arranged on the convex plane.
According to another aspect of the present application, there is also provided a method of manufacturing a vehicle engine front cover, for a vehicle engine front cover as described above, the method comprising: s100, cutting a steel plate and an aluminum plate, and stamping to form a steel plate layer and an aluminum plate layer; cutting the damping material to form a damping layer; s200, sequentially stacking a steel plate layer, a damping layer and an aluminum plate layer, and drilling a riveting hole, a crankshaft center hole and a bolt hole for connecting with a vehicle engine; s300, coating adhesive on the adjacent surfaces of the steel plate layer, the damping layer and the aluminum plate layer; and S400, riveting the steel plate layer, the damping layer and the aluminum plate layer.
Optionally, after S400, further comprising: and S500, coating sealant at the joint of the riveting hole and the rivet.
Optionally, between S400 and S500, further comprising: s600, polishing the roughness of the surface, facing the engine, of the aluminum plate layer.
Optionally, between S600 and S500, further comprising: and S700, correcting the levelness of the engine front cover relative to the engine matching surface.
According to yet another aspect of the present application, there is also provided a vehicle including the vehicle engine front cover as previously described herein.
According to the vehicle engine front cover, the manufacturing method thereof and the vehicle with the same, the steel plate layer, the damping layer and the aluminum plate layer are bonded and riveted at the same time, so that the NVH performance of the engine is effectively improved, the bonding and fixing capacity among the plate layers is improved, and the delamination phenomenon of the damping layer is avoided; on the other hand, the manufacturing cost is also greatly reduced.
Drawings
FIG. 1 is a side cross-sectional schematic view of an embodiment of a vehicle engine front cover of the present application.
FIG. 2 is a schematic front view of an embodiment of a vehicle engine front cover of the present application.
Detailed Description
In accordance with the concepts of the present application, an embodiment of a vehicle engine front cover 100 is described herein with reference to fig. 1 and 2. Specifically, the vehicle engine front cover 100 includes a steel plate layer 110, a damping layer 120, and an aluminum plate layer 130, which are sequentially arranged. Among them, the aluminum sheet layer 130 is disposed at a side facing the engine in order to reduce the entire weight of the front cover as much as possible, and the steel sheet layer 110 is disposed at a side facing away from the engine in order to improve the strength of the front cover as much as possible against external impact. More importantly, the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130 are adhered to each other and riveted by the rivet 140 penetrating through the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130. Under the arrangement, because two fixing modes of bonding and riveting are simultaneously implemented on the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130, the NVH performance of the engine is effectively improved, on one hand, the bonding and fixing capacity among the plate layers of the composite material is improved, and the delamination phenomenon of the damping layer 120 is avoided; on the other hand, the manufacturing cost is also greatly reduced.
With regard to the engine front cover, how to design the specific structure of the plies that make up its composite material will directly affect its overall performance, as will be exemplarily described below.
The comprehensive structure of the composite material engine front cover is to improve NVH performance, reduce weight and increase structural strength as much as possible. Among them, the improvement of NVH performance is mainly attributed to the contribution of the damping layer 120, the increase of structural strength is mainly attributed to the contribution of the steel deck 110, and the reduction of weight is mainly attributed to the replacement of a part of the steel deck 110 structure with the aluminum slab layer 130. Under comprehensive consideration, the thickness of the steel deck 110 can be set to be 1mm by adopting a finite element size optimization method; the thickness of the aluminum plate layer 130 is set to be 2 mm; and the thickness of the damping layer 120 is set to 0.2-0.5 mm. It should be appreciated that the foregoing parameters, or others, may be selected in part as long as they meet the relevant design requirements of the engine front cover, given the teachings of the foregoing disclosure.
In addition, regarding material selection and manufacturing, as a class of embodiments, the steel layer 110 may be manufactured by stamping a stainless steel plate or a galvanized steel plate; the aluminum plate layer 130 may be manufactured by cast aluminum alloy stamping; and the damping layer 120 may be made of viscoelastic resin. In addition, the rivets 140 may be made of cast aluminum alloy, which also facilitates weight reduction.
As an improvement on the details, a sealant may be further applied to a rivet point where the rivet 140 penetrates through the steel plate layer 110, the damping layer 120, and the aluminum plate layer 130, so as to improve the overall bonding degree and sealing degree of the composite material, and prevent liquid or dust from penetrating into the inner side of the composite material through the rivet 140 hole, thereby affecting the bonding degree.
Furthermore, the riveting points and the riveting number of the rivets 140 can also be obtained by a finite element morphology optimization method. Specifically, the optimized positions may be set as the projected plane 150, and the rivet point may be fixed to the projected plane 150.
According to another aspect of the present application, although not shown in the drawings, there is provided a method of manufacturing a vehicle engine front cover 100, which can be used to manufacture the vehicle engine front cover 100 in any of the foregoing embodiments or a combination thereof. Specifically, the method comprises the following steps: s100, cutting a steel plate and an aluminum plate according to the design size, and stamping the steel plate and the aluminum plate after forming and copying to form a steel plate layer 110 and an aluminum plate layer 130; the thickness and the appearance of the engine body are obtained by a finite element optimization method, so that a horizontal end face matched with the engine body and a concave-convex face capable of improving NVH performance are formed, the excellent NVH performance is ensured on the basis of lighter weight, and a better riveting point can be determined. The damping material is cut to form the damping layer 120. S200, sequentially stacking the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130, aligning the peripheries of the steel plate layer, the damping layer and the aluminum plate layer, and drilling a riveting hole 160 for riveting each composite material layer, a crankshaft central hole 170 for a crankshaft to penetrate through and a bolt hole 180 for connecting with a vehicle engine. 300, coating adhesive on the adjacent surfaces of the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130 to ensure enough adhesion between the composite material layers. And S400, riveting the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130 to realize final fixation among the composite materials. According to the engine front cover manufactured in the mode, two fixing modes of bonding and riveting are simultaneously implemented on the steel plate layer 110, the damping layer 120 and the aluminum plate layer 130, so that the NVH performance of the engine front cover is effectively improved, the bonding and fixing capacity among the plate layers of the composite material is improved, and the delamination phenomenon of the damping layer 120 is avoided; on the other hand, the manufacturing cost is also greatly reduced.
In addition, as a further optimization, after S400, the method may further include S500: sealant is applied to the junction of the rivet hole 160 and the rivet 140. Therefore, the overall combination degree and the sealing degree of the composite material are improved, and liquid or dust is prevented from permeating into the inner side of the composite material through the holes 140 of the rivet, so that the combination degree is not influenced. For another example, S600 may be further included between S400 and S500: the roughness of the surface of the aluminum sheet layer 130 facing the engine is polished to ensure that it meets engine design requirements. For another example, between S600 and S500, S700 may be further included: the levelness of the engine front cover with respect to the engine mating face is corrected.
According to still another aspect of the present application, although not shown in the drawings, there is also provided a vehicle including the vehicle engine front cover 100 according to any of the foregoing embodiments or a combination thereof, and thus having excellent NVH performance and low cost advantage as well.
The above examples mainly describe a vehicle engine front cover, a method of manufacturing the same, and a vehicle having the same. Although only a few embodiments of the present application have been described, those skilled in the art will appreciate that the present application may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made therein without departing from the spirit and scope of the present application as defined in the appended claims.
Claims (8)
1. A vehicle engine front cover, characterized by comprising: the damping layer is arranged on the steel plate layer; the aluminum plate layer is arranged on the side facing the engine, and the steel plate layer is arranged on the side facing away from the engine; the steel plate layer, the damping layer and the aluminum plate layer are bonded with each other and are riveted and fixed by a rivet penetrating through the steel plate layer, the damping layer and the aluminum plate layer; wherein, the rivet pierces through the rivet point coating of steel deck, damping layer and aluminium sheet layer is sealed glues, vehicle engine protecgulum still includes: the riveting point is arranged on the convex plane.
2. The vehicle engine front cover according to claim 1, characterized in that the steel sheet layer thickness is 1 mm; and/or the thickness of the aluminum plate layer is 2 mm; and/or the thickness of the damping layer is 0.2-0.5 mm.
3. The vehicle engine front cover according to claim 1, characterized in that the steel sheet layer is manufactured by stamping a stainless steel sheet or a galvanized steel sheet; and/or the aluminium sheet layer is manufactured by cast aluminium alloy stamping; and/or the damping layer is made of a viscoelastic resin.
4. A method of manufacturing a vehicle engine front cover for a vehicle engine front cover according to any one of claims 1 to 3, characterized by comprising:
s100, cutting a steel plate and an aluminum plate, and stamping to form a steel plate layer and an aluminum plate layer; cutting the damping material to form a damping layer;
s200, stacking a steel plate layer, a damping layer and an aluminum plate layer in sequence, and drilling a riveting hole, a crankshaft central hole and a bolt hole for connecting with a vehicle engine;
s300, coating adhesive on the adjacent surfaces of the steel plate layer, the damping layer and the aluminum plate layer;
and S400, riveting the steel plate layer, the damping layer and the aluminum plate layer.
5. The manufacturing method according to claim 4, further comprising, after S400: and S500, coating sealant at the joint of the riveting hole and the rivet.
6. The method of manufacturing of claim 5, further comprising, between S400 and S500: s600, polishing the roughness of the surface, facing the engine, of the aluminum plate layer.
7. The manufacturing method according to claim 6, further comprising, between S600 and S500: and S700, correcting the levelness of the engine front cover relative to the engine matching surface.
8. A vehicle, characterized by comprising: the vehicle engine front cover according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203625.0A CN111717291B (en) | 2019-03-18 | 2019-03-18 | Vehicle engine front cover, manufacturing method thereof and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203625.0A CN111717291B (en) | 2019-03-18 | 2019-03-18 | Vehicle engine front cover, manufacturing method thereof and vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111717291A CN111717291A (en) | 2020-09-29 |
| CN111717291B true CN111717291B (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910203625.0A Active CN111717291B (en) | 2019-03-18 | 2019-03-18 | Vehicle engine front cover, manufacturing method thereof and vehicle with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN111717291B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002284045A (en) * | 2001-03-26 | 2002-10-03 | Nissan Motor Co Ltd | Vehicle member connection method and vehicle member connection structure |
| CN101093008A (en) * | 2007-07-18 | 2007-12-26 | 郑钢铁 | Composite damping material with interlayer being as metal rubber |
| CN202686527U (en) * | 2012-06-20 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cabin ornamental plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140335368A1 (en) * | 2013-05-13 | 2014-11-13 | Ford Global Technologies, Llc | Method Of Fabricating Roll-Bonded Expanded Load-Bearing Aluminum Laminate Structural Elements For Vehicle |
| CN205059749U (en) * | 2015-09-25 | 2016-03-02 | 重庆长安汽车股份有限公司 | Automobile engine cabin noise insulation |
| JP6803290B2 (en) * | 2017-04-03 | 2020-12-23 | トヨタ自動車東日本株式会社 | Luggage door structure |
| CN206813115U (en) * | 2017-05-22 | 2017-12-29 | 广州汽车集团股份有限公司 | A kind of hood |
| CN207191179U (en) * | 2017-09-18 | 2018-04-06 | 重庆市盛天模型有限公司 | A kind of car bra lid |
-
2019
- 2019-03-18 CN CN201910203625.0A patent/CN111717291B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002284045A (en) * | 2001-03-26 | 2002-10-03 | Nissan Motor Co Ltd | Vehicle member connection method and vehicle member connection structure |
| CN101093008A (en) * | 2007-07-18 | 2007-12-26 | 郑钢铁 | Composite damping material with interlayer being as metal rubber |
| CN202686527U (en) * | 2012-06-20 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cabin ornamental plate |
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| Publication number | Publication date |
|---|---|
| CN111717291A (en) | 2020-09-29 |
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