A method for predicting rolling force of metal composite plates rolled by corrugated rollers

Abstract

The invention discloses a rolling force prediction method for rolling metal composite plates with a corrugated roll, belonging to the technical field of composite plate rolling. By obtaining the required rolling process parameters of the composite plate, calculating the reduction in thickness Δh and the inlet position l of the deformation zone during rolling, calculating the shear friction force τ1 between the corrugated roll and the difficult-to-deform metal, the shear friction force τ2 between the flat roll and the easy-to-deform metal, and the shear friction force τ3 between the difficult-to-deform metal and the easy-to-deform metal before the difficult-to-deform metal undergoes plastic deformation; then, according to the rolling process specification data and the stress characteristics of the slab in the deformation zone, the deformation zone is divided into zones, and the rolling stress p n (x) of each zone n (n = I, II,...) is calculated, and the rolling force P per unit width of each zone n is calculated n . Finally, the total rolling force P of the entire rolling deformation zone is calculated. A rolling force prediction method with short calculation time, low cost, good flexibility, and capable of comprehensively considering the influence laws of many parameters is provided.

Description

Technical Field

[0001] The invention belongs to the technical field of composite plate rolling, and in particular relates to a rolling force prediction method for a metal composite plate rolled by a corrugated roller. Background Art

[0002] Metallic layered composite materials can give full play to the performance advantages of each component, so that the product has excellent comprehensive performance and is widely used in the fields of electronics, aerospace, and petrochemicals. At present, the production of metallic layered composite materials mainly includes solid-solid composite, solid-liquid composite, and liquid-liquid composite based on electromagnetic continuous casting technology. Among them, the rolling composite method in solid-solid composite has the advantages of high production efficiency, good product consistency, and easy to realize industrial mass production, and is widely used.

[0003] At present, products produced by traditional flat roll composite rolling technology still have many problems, such as large residual stress of composite plates, poor plate shape, low bonding interface connection strength, etc. In recent years, a new corrugated roll composite rolling technology has been proposed. During the rolling process, the flat roll contacts the easily deformed metal, and the corrugated roll contacts the difficult-to-deform metal, and finally a metal composite plate with excellent size and bonding performance can be obtained.

[0004] The determination of rolling force during composite plate rolling can provide a basis for setting the roll gap and controlling the plate shape during the rolling process. It can also guide the design and selection of the equipment's tonnage load and strength verification, which is of great significance for extending the equipment's service life and safe production. At present, there are relatively few studies on rolling force in corrugated roller rolling composite technology, and the determination of rolling force mainly uses the finite element method and physical experimental method. However, the finite element method has a long calculation time and is not convenient for engineering applications, while the physical experimental method has large economic losses and poor flexibility. Therefore, there is an urgent need for a rolling force prediction method that has short calculation time, low cost, good flexibility, and can integrate the influence of many parameters. Summary of the invention

[0005] Aiming at the problems of long rolling force calculation time, high cost and inconvenience in engineering application in the current corrugated roller rolling composite technology, the present invention provides a rolling force prediction method for corrugated roller rolled metal composite plate.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for predicting rolling force of a metal composite plate rolled by a corrugated roller comprises the following steps:

[0008] Step 1: Obtain the required composite plate rolling process parameters according to the rolling process specification data of a certain pass;

[0009] Step 2: Calculate the reduction Δh during the rolling process and the entrance position l of the deformation zone;

[0010] Step 3: Calculate the shear friction force τ1 between the corrugated roller and the hard-to-deform metal, the shear friction force τ2 between the flat roller and the easy-to-deform metal, and the shear friction force τ3 between the hard-to-deform metal and the easy-to-deform metal before plastic deformation occurs;

[0011] Step 4: According to the rolling process data and the stress characteristics of the slab in the deformation zone, the deformation zone is divided into zones, and each zone is named Ⅰ, Ⅱ, ... in sequence from the exit. The total number of zones obtained varies with the rolling process;

[0012] Step 5: Calculate the rolling stress p of each partition n (n = I, II, ...) n (x);

[0013] Step 6: Calculate the rolling force P per unit width for each partition n n ;

[0014] Step 7: Calculate the total rolling force P in the entire rolling deformation zone.

[0015] Furthermore, the composite plate rolling process parameters required in step 1 include the inlet thickness h of the difficult-to-deform metal in contact with the corrugation roller. 1i and equivalent outlet thickness h 1o , the entrance thickness h of the deformable metal in contact with the flat roll 2i and equivalent outlet thickness h 2o , the width b of the hard-to-deform metal and the easy-to-deform metal, the entrance tension σ of the hard-to-deform metal and the easy-to-deform metal 1i and σ 2i , composite plate outlet tension σ o , the nominal radius of the corrugated roller and the radius R of the flat roller, the amplitude A of the corrugated roller, the number of complete waves on the corrugated roller N, the friction coefficient m1 between the corrugated roller and the difficult-to-deform metal, the friction coefficient m2 between the flat roller and the easily deformed metal, and the friction coefficient m3 between the difficult-to-deform metal and the easily deformed metal.

[0016] Furthermore, the step 2 calculates the reduction Δh and the deformation zone entrance position l during the rolling process based on the slab entrance thickness h 1i 、h 2i and outlet thickness h 1o 、h 2o Calculation, specifically: Δh = h 1i +h 2i -h 1o -h 2o ,

[0017] Further, the step 3: calculating the shear friction force τ1 between the corrugated roller and the hard-to-deform metal, the shear friction force τ2 between the flat roller and the easy-to-deform metal, and the shear friction force τ3 between the hard-to-deform metal and the easy-to-deform metal before plastic deformation; specifically as follows:

[0018] τ1=m1k e ,τ2=m2k e , τ3=m3k2,

[0019] h o =h 1o +h 2o ,h i =h 1i +h 2i , where k e is the equivalent shear yield strength of the composite plate, h i and h o are the equivalent inlet and outlet thicknesses of the composite plate, k1 and k2 are the shear yield strengths of the difficult-to-deform metal and the easy-to-deform metal, respectively.

[0020] Further, the step 5: calculating the rolling stress p of each partition n (n = I, II, ...) n (x); further comprising the steps of:

[0021] Step 5.1: Establish a rectangular coordinate system, determine and mark any dividing point d between each partition on the contact arc between the slab in the deformation zone and the corrugation roller, and determine the horizontal coordinate x of each dividing point d. d and the ordinate y d Expression of

[0022] Step 5.2: Determine the shape parameter a of each partition n n and b n Expression of

[0023] Step 5.3: Calculate the rolling stress p of each partition according to the static equilibrium equation, plasticity condition, stress boundary condition and friction condition of each partition. n (x).

[0024] Further, the step 5.1: establish a rectangular coordinate system, determine and mark any dividing point d between each partition on the contact arc between the slab in the deformation zone and the corrugation roller, and determine the horizontal coordinate x of each dividing point d. d and the ordinate y d The expression is as follows:

[0025] The center line of the upper and lower rollers is taken as the y-axis, the positive direction of the y-axis is upward, the central horizontal line of the equivalent outlet thickness of the composite plate is taken as the x-axis, the positive direction of the x-axis is the reverse direction of rolling, and the intersection of the two axes is the origin O, to establish a rectangular coordinate system;

[0026] The coordinates of any dividing point d between the partitions are x d =ρ d sinθ d , d=(d1, d2, d3,...);ρ d is the actual radius of the corrugation roller corresponding to the dividing point d, which can be determined according to the specific waveform of the corrugation roller and the position of point d; θ d is the bite angle at the dividing point d, and R is the nominal radius of the corrugated roll and the radius of the flat roll.

[0027] Further, the step 5.2: determining the shape parameter a of each partition n n and b n The expression is as follows:

[0028] b n =y nd -a n x nd , nd and n(d+1) represent the peak and trough points adjacent to partition n, respectively, y nd and n(d+1) Indicates the ordinates of the peak and trough points adjacent to the left and right of the area, x nd and x n(d+1) Indicates the horizontal coordinates of the peak points and trough points adjacent to the left and right of the area.

[0029] Further, the step 5.3: according to the static equilibrium equation, plasticity condition, stress boundary condition and friction condition of each zone, calculate the rolling stress p of each zone n (x) as follows:

[0030] (1) If the zone n experiences a trough point along the rolling direction, then when the calculation parameter A of the zone 0n When it is a negative value, the rolling stress p in the partition n n (x) is;

[0031]

[0032] When the area calculates parameter A 0n When it is positive, the rolling stress p in the zone n n (x) is;

[0033]

[0034] Among them, A 0n =-R(Ra n 2 -2b 0n -h o), if only the easily deformable metal yields in the calculation area, and the hard-to-deform metal does not yield, then parameter b 0n =b n -h 1i ; If both metal layers in the calculation area have yielded, then parameter b 0n =b n ,

[0035]

[0036] E n =-2[(-1) z2 τ2a n -k e ],

[0037] B n =(-1) z2 τ2(2Ra n 2 -2b n -h o +R)+(-1) z1 Rτ1(a n 2 +1),

[0038]

[0039] C n is the integration constant, which is determined by the corresponding boundary conditions;

[0040] z2 is a parameter related to the direction of τ2. If the direction of τ2 in partition n is the same as the direction of the x-axis, z2 is an even number, otherwise z2 is an odd number; z1 is a parameter related to the direction of τ1. If the direction of τ1 in a partition n is the same as the direction of the x-axis, z1 is an even number, otherwise z1 is an odd number;

[0041] (2) If the zone n experiences a peak point along the rolling direction, the rolling stress p in the zone n is n (x) is,

[0042] Further, the step 6: calculating the unit width rolling force P of each partition n n , specifically:

[0043]

[0044] Among them, c1n and c2n are the upper and lower limits of the integral of partition n, which are determined by the horizontal coordinates of the left and right dividing points of partition n.

[0045] Further, the step 7: calculating the total rolling force P of the entire rolling deformation zone is as follows:

[0046] Total rolling force P = (P Ⅰ +P Ⅱ +P Ⅲ +......)b.

[0047] Compared with the prior art, the present invention has the following advantages:

[0048] The present invention predicts the rolling force of a metal composite plate rolled by a corrugated roller. The method is safe and reliable, has accurate calculations, has good programmability, and is convenient for analyzing the comprehensive influence of various process parameters on the rolling force. In addition, the method can better describe the boundary shape of the deformation zone, and can obtain a calculation expression for the stress distribution along the deformation zone, which is convenient for predicting the load concentration position, saving costs, and improving product performance. The method has no restrictions on the type of corrugated rollers or the type of composite materials, and can be widely used in the prediction of rolling force in the corrugated rolling production process of various corrugated roller shapes and various metal composite plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic diagram of rolling a metal composite plate by corrugated rollers provided by the present invention;

[0050] In the figure, 1-hard-to-deform metal, 2-easy-to-deform metal, 3-corrugated roller, 4-flat roller.

[0051] Figure 2 A schematic flow chart of a method for predicting rolling force of a metal composite plate rolled by a corrugated roller provided by the present invention;

[0052] Figure 3 This is a schematic diagram of the rolling deformation and modeling partitioning of the composite plate provided by the present invention. DETAILED DESCRIPTION

[0053] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific embodiments. It should be understood by those skilled in the art that the specific embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0054] Figure 1 The rolling schematic diagram of the corrugated roller rolling metal composite plate is shown. In this embodiment, the difficult-to-deform metal 1 is a copper plate, and the easily deformable metal 2 is an aluminum plate. The two metal plate blanks are bound before rolling. Figure 2 The schematic diagram of the rolling force prediction method for corrugated roller rolling of metal composite plates is shown. Figure 2 As shown, the specific method is described as follows.

[0055] Step 1: Obtain the required composite plate rolling process parameters according to the rolling process specification data of a certain pass, including the inlet thickness h of the copper plate 1i =1mm and equivalent outlet thickness h 1o=0.71mm, the entrance thickness of the aluminum plate h 2i =2mm and equivalent outlet thickness h 2o =0.81mm, the width of the copper plate and the aluminum plate b = 15mm, the inlet tension σ 1i =0MPa and σ 2i =0MPa, composite plate outlet tension σ o =0MPa, the nominal radius of the corrugated roller and the radius of the flat roller R=75mm, the amplitude of the corrugated roller A=0.55mm, the number of complete waves on the corrugated roller N=100, the friction coefficient between the corrugated roller and the copper plate m1=0.6, and the friction coefficient between the flat roller and the aluminum plate m2=0.8. In this embodiment, the copper plate and the aluminum plate are bound before rolling, and the subsequent process does not involve the friction calculation between the two.

[0056] Step 2: According to the slab inlet thickness h 1i 、h 2i and outlet thickness h 1o 、h 2o , calculate the reduction Δh during the rolling process and the entrance position l of the deformation zone.

[0057] Δh=h 1i +h 2i -h 1o -h 2o =1+2-0.71-0.81=1.48mm

[0058]

[0059] Step 3: Calculate the shear friction force τ1 between the corrugated roller and the copper plate, and the shear friction force τ2 between the flat roller and the aluminum plate.

[0060] h o =h 1o +h 2o =0.71+0.81=1.52mm,

[0061]

[0062] τ1=m1k e =0.6×1.243=0.746kN,

[0063] τ2=m2k e =0.8×1.243=0.995kN,

[0064] Step 4: According to the rolling process specification data and the stress characteristics of the slab in the deformation zone, the deformation zone is divided into zones, and each zone is named Ⅰ, Ⅱ, ... in sequence from the exit. The total number of zones obtained varies with the rolling process. In this embodiment, zone Ⅰ, zone Ⅱ, zone Ⅲ, zone Ⅳ, zone Ⅴ, and zone Ⅵ are obtained.

[0065] Step 5: Calculate the rolling stress p of each partition n (n = I, II, ...) n (x)

[0066] Step 5.1: Establish a rectangular coordinate system, determine and mark any dividing point d between each partition on the contact arc between the slab in the deformation zone and the corrugation roller, and determine the horizontal coordinate x of each dividing point d. d and the ordinate y d expression.

[0067] The center line of the upper and lower rollers is taken as the y-axis, the positive direction of the y-axis is upward, the central horizontal line of the equivalent outlet thickness of the composite plate is taken as the x-axis, the positive direction of the x-axis is the reverse direction of rolling, and the intersection of the two axes is taken as the origin O to establish a rectangular coordinate system.

[0068] like Figure 3 As shown, in this embodiment, the rolling exit point on the contact arc between the copper plate and the corrugated roller is d1, the trough or peak points on the contact arc are d2, d3, d4, and d5 respectively; the point where the copper plate begins to plastically deform is d6; the neutral point on the contact arc between the aluminum plate and the flat roller is d7.

[0069] The coordinate expressions of each dividing point are:

[0070] x d1 =0,

[0071]

[0072] The horizontal coordinate value of the boundary point is x d1 =0,x d2 =1.187,x d3 =3.507,x d4 =5.928; other boundary points x d6 and x d7 It can be determined by the corresponding boundary conditions in the subsequent rolling stress calculation process.

[0073] Step 5.2: Determine the shape parameter a of each partition n n and b n expression.

[0074] b Ⅰ =y d1 -a Ⅰ x d1 ,

[0075] b Ⅱ =b Ⅲ =y d2 -a Ⅱ x d2,

[0076] b Ⅳ =y d3 -a Ⅳ x d3 ,

[0077] b Ⅴ =y d4 -a Ⅴ x d4 ,

[0078] a Ⅵ =0, where h i =h 1i +h 2i

[0079] Step 5.3: Calculate the rolling stress p of each partition according to the static equilibrium equation, plasticity condition, stress boundary condition and friction condition of each partition. n (x). Specifically:

[0080] The rolling stress in zone VI is:

[0081]

[0082] in E Ⅵ =2(τ2a Ⅵ +k2),

[0083] B Ⅵ = -τ2(2Ra Ⅵ 2 -2b Ⅵ +2h 1i -h o +R)+Rτ3(a Ⅵ 2 +1),

[0084]

[0085] according to Computable x d6 =7.728

[0086] The rolling stress in zone V is:

[0087]

[0088] in E Ⅴ =2(τ2a Ⅴ +k e ),

[0089] BⅤ = -τ2(2Ra Ⅴ 2 -2b Ⅴ -h o +R)+Rτ1(a Ⅴ 2 +1),

[0090]

[0091] The rolling stress in zone IV is:

[0092]

[0093] The rolling stress in zone III is:

[0094]

[0095] in, E Ⅲ =2(τ2a Ⅳ +k e ),

[0096] B Ⅲ = -τ2(2Ra Ⅲ 2 -2b Ⅲ -h o +R)+Rτ1(a Ⅲ 2 +1),

[0097]

[0098] The rolling stress in zone I is:

[0099]

[0100] in,

[0101]

[0102] The rolling stress in zone II is:

[0103]

[0104] in E Ⅱ =2(-τ2a Ⅳ +k e ),

[0105] B Ⅱ =τ2(2Ra Ⅱ 2 -2b Ⅱ -h o +R)+Rτ1(aⅡ 2 +1),

[0106]

[0107] According to p Ⅱ (x d7 )=p Ⅲ (x d7 ), we can find x d7 =2.227

[0108] Step 6: Calculate the rolling force P per unit width for each partition n n ;

[0109]

[0110] Step 7: Calculate the total rolling force P in the entire rolling deformation zone,

[0111] Total rolling force P = (P Ⅰ +P Ⅱ +...+P Ⅵ )b=43.979kN.

[0112] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in the field. Although the illustrative specific embodiments of the present invention are described above to facilitate the understanding of the present invention by the technical personnel in the field, it should be clear that the present invention is not limited to the scope of the specific embodiments. For the ordinary technicians in the field of this technology, as long as various changes are within the spirit and scope of the present invention defined and determined by the attached claims, these changes are obvious, and all inventions and creations using the concept of the present invention are protected.

Claims

1. A method for predicting rolling force of a metal composite plate rolled by a corrugated roller, characterized in that: The following steps are involved: Step 1: Obtain the required composite plate rolling process parameters according to the rolling process specification data of a certain pass; Step 2: Calculate the reduction Δh during the rolling process and the entrance position l of the deformation zone; Step 3: Calculate the shear friction force τ1 between the corrugated roller and the hard-to-deform metal, the shear friction force τ2 between the flat roller and the easy-to-deform metal, and the shear friction force τ3 between the hard-to-deform metal and the easy-to-deform metal before plastic deformation occurs; Step 4: According to the rolling process data and the stress characteristics of the slab in the deformation zone, the deformation zone is divided into zones, and each zone is named Ⅰ, Ⅱ, ... in sequence from the exit. The total number of zones obtained varies with the rolling process; Step 5: Calculate the rolling stress p of each partition n (n = I, II, ...) n (x); Step 6: Calculate the rolling force P per unit width for each partition n n ; Step 7: Calculate the total rolling force P in the entire rolling deformation zone; The composite plate rolling process parameters required in step 1 include the inlet thickness h of the difficult-to-deform metal in contact with the corrugation roller. 1i and equivalent outlet thickness h 1o , the entrance thickness h of the deformable metal in contact with the flat roll 2i and equivalent outlet thickness h 2o , the width b of the hard-to-deform metal and the easy-to-deform metal, the entrance tension σ of the hard-to-deform metal and the easy-to-deform metal 1i and σ 2i , composite plate outlet tension σ o , the nominal radius of the corrugated roller and the radius R of the flat roller, the amplitude A of the corrugated roller profile, the number N of complete waves on the corrugated roller, the friction factor m1 between the corrugated roller and the hard-to-deform metal, the friction factor m2 between the flat roller and the easy-to-deform metal, and the friction factor m3 between the hard-to-deform metal and the easy-to-deform metal; Step 5: Calculate the rolling stress p of each partition n (n=Ⅰ, Ⅱ, . . . ) n (x); further comprising the steps of: Step 5.1: Establish a rectangular coordinate system, determine and mark any dividing point d between each partition on the contact arc between the slab in the deformation zone and the corrugation roller, and determine the horizontal coordinate x of each dividing point d. d and the ordinate y d Expression of Step 5.2: Determine the shape parameter a of each partition n n and b n Expression of Step 5.3: Calculate the rolling stress p of each partition according to the static equilibrium equation, plasticity condition, stress boundary condition and friction condition of each partition. n (x); Step 5.1: Establish a rectangular coordinate system, determine and mark any dividing point d between each partition on the contact arc between the slab in the deformation zone and the corrugation roller, and determine the horizontal coordinate x of each dividing point d. d and the ordinate y d The expression is as follows: The center line of the upper and lower rollers is taken as the y-axis, the positive direction of the y-axis is upward, the center horizontal line of the equivalent outlet thickness of the composite plate is taken as the x-axis, the positive direction of the x-axis is the reverse direction of rolling, and the intersection of the two axes is the origin O, to establish a rectangular coordinate system; The coordinates of any dividing point d between the partitions are x d =ρ d sinθ d , d=(d1, d2, d3,...);ρ d is the actual radius of the corrugation roller corresponding to the dividing point d, which is determined according to the specific waveform of the corrugation roller and the position of point d; θ d is the bite angle at the location of the dividing point d, R is the nominal radius of the corrugated roll and the radius of the flat roll; Step 5.2: Determine the shape parameter a of each partition n n and b n The expression is as follows: b n =y nd -a n x nd , nd and n(d+1) represent the peak and trough points adjacent to partition n, respectively, y nd and n(d+1) Indicates the ordinates of the peak and trough points adjacent to the left and right of the area, x nd and x n(d+1) Indicates the horizontal coordinates of the adjacent peak points and trough points on the left and right sides of the area; Step 5.3: Calculate the rolling stress p of each zone according to the static equilibrium equation, plasticity condition, stress boundary condition and friction condition of each zone. n (x) as follows: (1) If the zone n experiences a trough point along the rolling direction, then when the calculation parameter A of the zone 0n When it is a negative value, the rolling stress p in the partition n n (x) is; When the area calculates parameter A 0n When it is positive, the rolling stress p in the zone n n (x) is; Among them, A 0n =-R(Ra n 2 -2b 0n -h o ), if only the easily deformable metal yields in the calculation area, and the hard-to-deform metal does not yield, then parameter b 0n =b n -h 1i ; If both metal layers in the calculation area have yielded, then parameter b 0n =b n , E n =-2[(-1) z2 τ2a n -k e ], B n =(-1) z2 τ2(2Ra n 2 -2b n -h o +R)+(-1) z1 Rτ1(a n 2 +1), C n is the integration constant, which is determined by the corresponding boundary conditions; z2 is a parameter related to the direction of τ2. If the direction of τ2 in partition n is the same as the direction of the x-axis, z2 is an even number, otherwise z2 is an odd number; z1 is a parameter related to the direction of τ1. If the direction of τ1 in a partition n is the same as the direction of the x-axis, z1 is an even number, otherwise z1 is an odd number; (2) If the zone n experiences a peak point along the rolling direction, the rolling stress p in the zone n is n (x) is, k e is the equivalent shear yield strength of the composite plate, h o is the composite plate outlet thickness.

2. The rolling force prediction method for corrugated roller rolling of metal composite plate according to claim 1, characterized in that: The step 2 calculates the reduction amount Δh and the entrance position l of the deformation zone during the rolling process, specifically based on the entrance thickness h of the difficult-to-deform metal in contact with the corrugation roller. 1i , the entrance thickness h of the deformable metal in contact with the flat roller 2i and the equivalent outlet thickness h of the difficult-to-deform metal in contact with the corrugation roller 1o , the equivalent outlet thickness h of the deformable metal in contact with the flat roller 2o Calculation, specifically: Δh = h 1i +h 2i -h 1o -h 2o , 3. The rolling force prediction method for corrugated roller rolling of metal composite plate according to claim 1, characterized in that: Step 3: Calculate the shear friction force τ1 between the corrugated roller and the hard-to-deform metal, the shear friction force τ2 between the flat roller and the easy-to-deform metal, and the shear friction force τ3 between the hard-to-deform metal and the easy-to-deform metal before plastic deformation; specifically as follows: τ1=m1k e ,τ2=m2k e ,τ3=m3k2, h o =h 1o +h 2o ,h i =h 1i +h 2i , where k e is the equivalent shear yield strength of the composite plate, h i and h o are the equivalent inlet and outlet thicknesses of the composite plate, k1 and k2 are the shear yield strengths of the difficult-to-deform metal and the easy-to-deform metal, respectively.

4. The rolling force prediction method for corrugated roller rolling of metal composite plate according to claim 1, characterized in that: Step 6: Calculate the unit width rolling force P of each partition n n , specifically: Among them, c1n and c2n are the upper and lower limits of the integral of partition n, which are determined by the horizontal coordinates of the left and right dividing points of partition n.

5. The rolling force prediction method for corrugated roller rolling of metal composite plate according to claim 1, characterized in that: The step 7: calculating the total rolling force P of the entire rolling deformation zone is as follows: Total rolling force P = (P Ⅰ +P Ⅱ +P Ⅲ +......)b.

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