KR20130024649A - Automatic gating design system using knowledge base and method of the same - Google Patents

Abstract

PURPOSE: A knowledge based automatic casting method design system and a method thereof are provided to enable a user to easily design a casting method by using the knowledge of experts. CONSTITUTION: A casting method design element input unit(10) inputs information for casting method design elements, and a casting equipment DB(DataBase)(20) stores information for casting equipment. A knowledge DB(30) stores knowledge for automatically designing an optimal casting method. A casting method automatic design module(40) automatically designs the optimal casting method from the information for the casting equipment and the information of the casting method design element by using the knowledge. A casting method generating module(50) generates a CAD(Computer Aided Design) model of the automatically designed casting method. [Reference numerals] (10) Casting method design element input unit; (20) Casting equipment DB; (30) Knowledge DB; (40) Casting method automatic design module; (50) Casting method generating module; (60) Working condition input unit; (70) Casting equipment information input unit; (80) Casting method optimality test module

Description

Automatic gating design system using knowledge base and method of the same

The present invention relates to a knowledge-based automatic casting system design method and method, and more specifically, to automatically casting the casting method using a knowledge base that rules the expert's empirical formula for the optimal casting method design The present invention relates to a knowledge-based automatic casting system design system and method for designing and casting a CAD model of a casting method so that anyone can easily and conveniently design a rapid casting method.

In general, casting refers to a process of dissolving a solid metal having a large deformation resistance into a liquid state having a low resistance to deformation, injecting the solid into a mold to be produced, and solidifying it, thereby producing a desired shape of the bar at a time It says.

The quality of the castings produced by such casting depends on how the molten metal is introduced into the mold and coagulated. In particular, the quality of the casting depends largely on how the molten metal is introduced into the mold and how such molten metal is introduced into the mold The design of the casting is the core of the casting design.

Therefore, the key to the design of the gating system is to design the flow path to allow the molten metal to flow into the molds to be manufactured from the casting equipment. In fact, %.

However, in the past, the casting engineer has been designing such a casting method by using the CAD directly by experience, so that the casting plan design can not be easily made and mainly depends on the experience of the engineer. Also, It has been inconvenient to redesign it directly using CAD.

Recently, a method and apparatus for setting an optimum casting method have been disclosed in Korean Patent No. 10-0645569 (Korean Patent No. 10-0877510) Dimensional mold automatic design system and method ", and a" Casting design optimization system (CDOS) for shape castings "is disclosed in US Pat. No. 7761263.

However, all of the above-described prior arts store the shape itself in the database, search for a similar shape among them, and modify the shape through repetitive simulation, so that the casting plan is designed. In such a repetitive simulation, there is a problem.

In order to change the casting plan based on the results obtained through the simulation, it is necessary to have a long experience of the designer, so that anyone can not easily design the casting plan, and the changed casting plan must be directly redesigned using the CAD. It is long and uncomfortable.

Korean Registered Patent (No. 10-0645569): "Apparatus and method for setting optimal casting plan" Korean Registered Patent (No. 10-0877510): "3-D Mold Automatic Design System and Method Using CAD Program" United States Patent (US7761263): "Casting design optimization system (CDOS) for shape castings"

Therefore, the technical problem to be achieved by the present invention is to automatically design the casting method using a knowledge base that rules the expert's empirical formula for the optimal casting method design and generate the CAD model of the designed casting method. It is to provide a knowledge-based automatic casting scheme automatic design system and method that anyone can easily and conveniently design a rapid casting scheme.

Knowledge-based casting method automatic design system according to an embodiment of the present invention for solving the technical problem is a knowledge-based casting method automatically designing a casting system (gating system) using a knowledge base (knowledge base) A design system, comprising: a casting strategy design element input unit for inputting information about a casting strategy design element; A casting equipment database in which information about at least one casting equipment is stored; A knowledge database storing a knowledge base for automatically designing an optimal casting method; An automatic casting method design module for automatically designing an optimal casting method from the information on the casting plan design elements and the information on the casting equipment using the knowledge base; And a casting method generation module for generating a CAD model of the automatically designed casting method.

Preferably, the knowledge base extracts and formulates empirical equations for optimal casting plan design from the optimal casting plan design know-how accumulated by the numerous experiences of casting plan design experts and a plurality of optimal casting plan design data designed therefrom. It may be one.

Preferably, the casting scheme design element may include an in-gate and a path, wherein the information of the ingate includes the number of ingates, the location of each of the ingates, and the ingates, respectively. The width and the thickness of the, and the flow path information may include a path line (path line) input in the drawing.

Preferably, the automatic casting scheme design module automatically designs an optimal width and thickness at a predetermined position of the flow path from the ingate and flow path information by using the knowledge base, and the casting strategy generation module is configured as the designed flow path. The shape of can be formed into a CAD model.

In addition, the automatic knowledge-based casting scheme design system according to an embodiment of the present invention inputs the working condition input unit for setting the working conditions and the casting equipment information for selecting any one of the casting equipment information stored in the casting equipment database It may further include wealth.

On the other hand, knowledge-based casting method automatic design method according to an embodiment of the present invention in the knowledge-based casting method automatic design method for automatically designing a casting system (gating system) using a knowledge base (knowledge base), Setting casting equipment information; Inputting casting strategy design element information; Automatically designing an optimal casting scheme for the casting equipment information and the casting scheme design information information router using a knowledge base stored in a knowledge database; And generating the designed casting scheme into a CAD model.

Preferably, the knowledge base extracts and formulates empirical equations for optimal casting plan design from the optimal casting plan design know-how accumulated by the numerous experiences of casting plan design experts and a plurality of optimal casting plan design data designed therefrom. It may be one.

Preferably, the step of inputting the casting scheme design element information may include inputting information of an in-gate and inputting information of a path, wherein the information of the ingate is The number of gates, a position of each of the ingates, and a width and a thickness of each of the ingates may be included, and the information of the flow path may include a path line input on the drawing.

Preferably, the automatic design of the casting scheme is designed to automatically design the optimum width and thickness at a predetermined position of the flow path from the ingate and the flow path information using the knowledge base, the step of generating the casting scheme is the designed flow path The shape of can be formed into a CAD model.

In addition, the knowledge-based automatic casting method design method according to an embodiment of the present invention may further comprise the step of setting the working conditions.

On the other hand, the knowledge-based casting method automatic design method may be stored in a computer-readable recording medium recording a program.

The knowledge-based automatic casting system design method and method thereof according to the present invention provides an optimal casting plan design when the designer inputs information of casting plan design elements such as ingate and path for the casting plan design. It is effective for anyone to design casting method easily and quickly because it automatically designs casting method by using knowledge base that regularizes expert's empirical formula.

In addition, since the knowledge-based automatic casting system design system and method according to the present invention automatically generates a CAD model of the casting scheme designed automatically, compared to the case where the designer designs the casting scheme using CAD directly, It is possible to reduce the mistakes that can occur when designing directly, and furthermore, it can reduce the design time of casting method.

1 is a configuration diagram for explaining a knowledge-based casting method automatic design system according to an embodiment of the present invention,
2 to 4 is a view showing a casting scheme according to an embodiment of the present invention,
FIG. 5 is a diagram illustrating an example in which a casting plan optimized by a knowledge-based casting method automatic design system according to the present invention is generated as a CAD model.
6 is a view schematically showing a knowledge-based automatic casting method design method according to an embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

In addition, while the invention permits numerous modifications and variations, specific embodiments thereof are shown by way of example in the drawings and will be described in detail below. Rather, the intention is not to limit the invention to the particular forms disclosed, but rather, the invention includes all modifications, equivalents and substitutions that are consistent with the spirit of the invention as defined by the claims.

In addition, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a knowledge-based automatic casting system design system according to an embodiment of the present invention.

Referring to Figure 1, the knowledge base (gating system) automatic design system (gating system) in accordance with an embodiment of the present invention is the casting scheme design element input unit 10, casting equipment database 20, knowledge database ( 30), the automatic casting method design module 40 and the casting method generation module 50 may be made.

The casting plan design element input unit 10 is configured to receive basic information of a casting plan design element for designing a casting plan, and the casting plan design element may include an ingate and an flow path. The information on the ingate may include information on the number, location, thickness, width, and shape. The information on the flow path may include information on a path line connected to the ingate from the melt outlet of the casting equipment. It may include.

The casting equipment database 20 is a configuration in which information about casting equipment to be used is stored. The casting equipment database 20 may store information on at least one casting equipment, and the information of the casting equipment may be It may include a position and the shape of the outlet and the shape of the sleeve constituting the discharge port is discharged. Here, the sleeve is a part for forming a discharge port for discharging the molten metal, and is finally stored before the molten metal in the casting equipment is introduced into the casting machine. Since the shape and size of the sleeve are different for each casting machine, In order to do so, we need information about its shape and size.

The knowledge database 30 is a configuration that stores a knowledge base that rules the expert's empirical formula for the optimal casting scheme design, the knowledge base is the optimal accumulated by a large number of experiences of casting expert design expert The casting scheme design know-how of and a plurality of optimal casting scheme design data designed therefrom are extracted from the equation for the optimal casting scheme design and regularized and stored in the knowledge database (30).

The automatic casting scheme design module 40 uses the knowledge base stored in the knowledge database 30 from the information of the casting scheme design element received from the input unit 10 and the casting equipment information stored in the casting equipment database 20. It is the configuration to automatically design the optimal casting method.

That is, in the knowledge-based casting plan automatic design system according to the present invention, when the designer inputs information on the casting plan design elements, the optimal casting plan is automatically designed by the casting plan automatic design module 40. The knowledge-based automatic casting system design system according to the present invention provides the advantage of easily and conveniently designing the optimal casting method even if the expert is not a casting plan design expert.

The casting method generation module 50 is a configuration for generating a CAD model of the casting method automatically designed by the casting method automatic design module 40, for this purpose knowledge automatic casting system design system according to the present invention is a CAD element It may include.

That is, since the knowledge-based automatic casting system design system according to the present invention generates the CAD model of the automatically designed casting scheme directly, the designer does not need to design the CAD model of the casting scheme separately using a CAD program, and thus casting It greatly shortens the design time of the room, which provides the advantage of rapid casting plan design.

On the other hand, the automatic knowledge-based casting scheme design system according to the present invention is a working condition input unit 60 for receiving the working conditions for the material of the melt, the injection pressure or injection speed of the melt, the temperature of the melt, etc. from the designer, and casting equipment It may further comprise a casting equipment information input unit 70 for selecting information of any one of the casting equipment of the information of the casting equipment stored in the database 20.

The work condition input unit 60 and the casting equipment information input unit 70 may be configured as a template so that the designer can select on the template, and also the work condition input unit so that the designer can simultaneously input the work condition and casting equipment information. 60 and the casting equipment information input unit 70 may be configured on one template.

Hereinafter, the components will be described in detail with reference to the drawings showing an embodiment of the casting method.

2 to 4 is a view showing a casting scheme according to an embodiment of the present invention, Figure 2 is a view schematically showing a state in which the casting scheme is connected to the mold, Figure 3 is an embodiment of the casting scheme below It is a figure which shows the state which looked up, and FIG. 4 is a figure which shows the state which looked down from the top.

2 to 4, the casting method 100 according to an embodiment of the present invention includes an ingate 110, a runner 120, a biscuit neck 130, It may comprise a biscuit (132).

The ingate 110 is an inlet through which a molten metal flows into a mold 102 having a shape of a product to be cast, and is one of casting plan design elements required for designing a casting plan. Input through the casting scheme design element input unit (10).

The information of the ingate 110 to be input by the designer may include the number of ingates, each position of the ingates, the shape, width, and thickness of each ingate, and the designer according to the shape of the product to be cast. The ingate may be set and input through the casting plan design element input unit 10.

That is, the designer may set the information of the ingate 110 that enables the optimal casting scheme design in consideration of the shape of the product to be manufactured, and input the information through the casting scheme design element input unit 10, for example. The user may set the number of ingates 110 by dividing the portion to be injected into the mold into pieces, and the position, shape, thickness, and width of each ingate 110 may be determined by the respective ingates 110. It can be set differently depending on the amount of molten metal to be injected into the furnace. The information of the in-gate 110 can be arbitrarily set and inputted according to the designer's selection, and the designer can set and input the information of the in-gate 10 according to the shape of the product.

The casting scheme design element input unit 10 may be configured as a template so that a user can select it on a template. Preferably, the casting scheme design element input unit 10 may directly ingate 110 in the drawing using CAD elements. It may also be configured to be able to enter the information of).

The biscuit 132 is connected to the sleeve of the casting machine so as to be connected to the outlet of the molten metal of the casting machine. The biscuit 132 can be designed in consideration of the shape of the sleeve which is different according to the casting machine as described above.

The information of the biscuit 132, which is designed as part of the casting scheme, may be configured to be directly input by the designer. However, since the sleeve is different in shape, size, position, etc. according to the casting equipment, the casting equipment is preferable. Through the casting equipment information input unit 70 included in the information of at least one or more currently used casting equipment stored in the database 20 and configured as a template, the designer may be configured to select any one of them on the template.

Therefore, when the designer selects and inputs any one information of at least one or more casting equipment information stored in the casting equipment database 20 through the casting equipment information input unit 70, information necessary for designing a casting plan, that is, casting equipment Information such as the location of the molten metal outlet, the shape and size of the sleeve can be set, the biscuit 132 constituting a part of the casting scheme can be automatically designed according to the set information. In another embodiment, the information on the sleeve is stored in the casting equipment database 20 of the sleeve in the form of frequently used, if the designer selects any one of a plurality of sleeve forms accordingly the biscuit 132 In this case, the diameter of the biscuit 132 is automatically determined according to the size of the selected sleeve, and the thickness of the biscuit 132 may be configured to be input as a value commonly used by a designer. .

The runner 120 and the biscuit neck 130 are configured to form a path through which the molten metal moves from the biscuit 132 to the inlet 110. The runner 120 is connected to the biscuit neck 130 A gate runner 122 for forming a flow path through which the molten metal flows and a gate runner 122 for dividing the molten metal transferred to the gate runner 122 into respective in- And a plurality of ingate runners 124 branching from a predetermined position of the induction runner 124.

The runner 120 and the biscuit neck 130, which are moving paths of the molten metal, which are designed as part of a casting method, are one of the casting plan design elements for the casting method design, and the runner 120 and the biscuit neck 130 ) Is the information to be input by the designer.

In the present invention, the information of the runner 120 and the biscuit neck 130, which are the casting design elements, may be input as a path line. Preferably, the flow path line is a designer in the drawing using a CAD element. Can be configured to be designable.

That is, the designer forms a flow path from the phosphorus gate 110 to the biscuit 132 using the CAD element in the drawing in order to input information of the runner 120 and the biscuit neck 130 forming the path By designing a plurality of lines, information of the flow path can be inputted.

Accordingly, in the knowledge-based automatic casting scheme design system according to the present invention, the designer can directly design the path information, which is one of the casting scheme design elements, by using a CAD element in a predetermined line on the drawing. It provides the advantage of easy input of casting plan design elements for the room design.

On the other hand, when the information of the ingate 110 and the path (path), which is the information of the casting scheme design element is input by the designer in this way, the casting scheme automatic design module 30 is the expert's empirical expression rule in the knowledge database 30 Automatically design the optimal casting method by using the stored knowledge base.

Specifically, the knowledge base has an empirical equation that can calculate the width and thickness at a predetermined position of the flow path so that the movement speed of the molten metal on the flow path can be made to the optimum conditions for the optimal casting scheme design. And the casting method automatic design module 40 is designed by optimally designing the width and thickness at a predetermined position of the runner 120 and the biscuit neck 130 forming each flow path using the knowledge base. The optimal casting method can be designed automatically.

Preferably, the casting scheme automatic design module 40 may design an optimal shape along with the width and thickness at a predetermined position of the path, for example, at each branch point on the path. By differently calculating the value of the radius of curvature of the corner portion in an optimal state, the shape at each position on the flow path can be designed differently.

That is, in the knowledge-based automatic casting scheme design system according to the present invention, when the ingate 110, which is a casting scheme design element, and the path information are inputted by the designer, the runner forming the flow path for the optimal casting scheme design is made. It can be said that the 120 and the biscuit neck 130 are designed in an optimal shape.

In addition, the knowledge-based casting method automatic design system according to the present invention can be automatically generated in the CAD model by the casting method generation module 50, the casting plan automatically designed in the casting method automatic design module 40, Therefore, designers can design more optimally compared to the case of designing optimal casting plan directly by using CAD program, and it can reduce the mistakes that can be made when designing directly. Provide advantages.

FIG. 5 is a diagram illustrating an example in which a casting method optimized by a knowledge-based casting method automatic design system according to the present invention is generated as a CAD model.

As shown in Figure 5, according to the knowledge-based casting method automatic design system according to the present invention, the casting method finally optimized by the flow path 140 input on the drawing by the designer is automatically designed CAD model ( 150).

On the other hand, the automatic knowledge-based casting scheme design system according to the present invention can be further received through the working condition input unit 60, such as the operating conditions such as the discharge speed and the temperature of the molten metal from the casting equipment of the molten metal, Including the rule in consideration of the working conditions, the optimal casting scheme design by the automatic casting scheme design module 40 may be made in consideration of the working conditions, it may be configured to enable more optimal casting scheme design.

In addition, the automatic knowledge-based casting scheme automatic design system according to the present invention is a casting scheme automatic design module from the channel line information input by the designer as the preferred shape of the biscuit neck 130 forming a portion of the path (path) as described above Although it may be configured to be automatically designed by the 40, in practice with respect to the size and shape of the biscuit neck 130, since the shape and size that is mainly used is often determined, at least one or more of the biscuit neck 130 The biscuit neck 130 having the selected shape is automatically configured into a CAD shape by the casting method generation module 40 by configuring the information as a template to allow a designer to select any one of the information of the biscuit neck 130. It may be configured to be generated.

The configuration for selecting the information of the biscuit neck 130 is configured as a separate template or included in any one template of the casting scheme design element input unit 10, the working condition input unit 60, casting equipment information input unit 70 It may be made, but may be preferably included in the template of the casting equipment information input unit 60.

On the other hand, the knowledge-based casting method automatic design system according to the present invention is a casting method optimization inspection module for checking whether the CAD model generated by the casting method generation module 50 is optimized based on the knowledge base generated It may be made to further include (80), if it is necessary to redesign the casting method as a result of the inspection by the casting method optimization test module 80 as described above, the designer again to the ingot 110, which is the casting method design element Since only the input of the path information (path), the indication-based casting scheme automatic design system according to the present invention has the advantage that it is possible to change the casting scheme design quickly and easily and conveniently.

Hereinafter, a knowledge-based casting method automatic design method according to an embodiment of the present invention will be described in detail with reference to the drawings.

6 is a view schematically showing a knowledge-based automatic casting method design method according to an embodiment of the present invention.

Referring to FIG. 6, in the knowledge-based casting method automatic design method according to an embodiment of the present disclosure, the method includes setting casting equipment information (S10), inputting casting plan design element information (S20), and a knowledge database ( Automatically designing the optimal casting scheme from the casting equipment information and the casting scheme design element information using the knowledge base stored in 40) (S30) and generating the designed casting scheme as a CAD model ( S40) can be made.

The setting of the casting equipment information (S10) is composed of a template can be made by the designer selected on the template, the step of inputting the casting scheme design element information (S20) in the drawing by the designer using CAD elements By input.

For example, the casting scheme design element may include an ingate 110 and a path, and the designer uses a CAD element in the drawing to determine the number, location, and thickness of the ingate 110 information. , Width, etc. may be input, and a flow path line, which is information of a path, may be input using a CAD element on the drawing.

In addition, the knowledge-based automatic casting method design method according to the present invention is to set the operating conditions, such as the injection speed of the molten metal and the temperature of the molten metal (S50), and the generated CAD model is generated by optimizing based on the knowledge base It may be made further comprising the step (S60) of checking.

On the other hand, the knowledge-based casting method automatic design method according to an embodiment of the present invention can be implemented as a computer-readable code on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, optical data storage, and the like, and also in the form of carrier waves (e.g., transmission over the Internet). It also includes implementations. The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers skilled in the art to which the present invention pertains.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Automatic designing system and method for casting based design method according to the present invention automatically design casting method and design casting method by using knowledge base that rules expert's empirical formula for optimal casting method design. Since the CAD model is generated, it is expected that anyone can easily and conveniently design the casting method quickly, so that its use will increase.

10: casting plan design element input unit 20: casting equipment information database
30: Knowledge base 40: Automatic casting module design
50: casting method generation module 60: working condition input unit
70: casting equipment information input unit 80: simulation module
100: Casting method 110:
120: runner 130: biscuit neck
132 biscuit 140 path line
150: CAD model

Claims (13)

In a knowledge-based casting scheme automatic design system that automatically designs a casting system using a knowledge base,
Casting plan design element input unit for inputting information about the casting plan design element;
A casting equipment database in which information about at least one casting equipment is stored;
A knowledge database storing a knowledge base for automatically designing an optimal casting method;
An automatic casting method design module for automatically designing an optimal casting method from the information on the casting plan design elements and the information on the casting equipment using the knowledge base; And
Automatic casting system based on the knowledge-based casting method, characterized in that it comprises a; casting method generation module for generating a CAD model of the automatically designed casting method. The method of claim 1,
The knowledge base is characterized by extracting and ordering empirical equations for optimal casting plan design from the optimal casting plan design know-how accumulated by numerous experiences of casting plan design experts and a number of optimal casting plan design data designed therefrom. Knowledge-based casting scheme automatic design system. The method of claim 1,
The casting scheme design element is a knowledge-based casting scheme automatic design system, characterized in that it comprises an in-gate and a path. The method of claim 3, wherein
The information of the ingate includes the number of ingates, the location of each of the ingates, the width and thickness of each of the ingates, and the information of the flow path includes a path line input in the drawing. Knowledge-based casting scheme automatic design system. The method according to claim 3 or 4,
The casting scheme automatic design module automatically designs an optimal width and thickness at a predetermined position of the flow path from the ingate and flow path information using the knowledge base.
The casting scheme generation module is a knowledge-based casting scheme automatic design system, characterized in that to form the shape of the designed flow path CAD model. The method of claim 1,
And a casting condition information input unit for selecting any one of the casting condition information stored in the casting machine database. In the knowledge-based casting method automatic design method of automatically designing the casting system (gating system) using a knowledge base,
Setting casting equipment information;
Inputting casting strategy design element information;
Automatically designing an optimal casting scheme from the casting equipment information and the casting scheme design element information using a knowledge base stored in a knowledge database; And
Generating the designed casting scheme into a CAD model; Knowledge-based casting scheme automatic design method comprising a. The method of claim 7, wherein
The knowledge base is characterized by extracting and ordering empirical equations for optimal casting plan design from the optimal casting plan design know-how accumulated by numerous experiences of casting plan design experts and a number of optimal casting plan design data designed therefrom. Automatic design method based on knowledge based casting method. The method of claim 7, wherein
The casting method design element information input step includes inputting information of an in-gate and inputting information of a path. The method of claim 9,
The information of the ingate includes the number of ingates, the location of each of the ingates, the width and thickness of each of the ingates, and the information of the flow path includes a path line input in the drawing. Automatic design method based on knowledge based casting method. The method of claim 9,
The automatic designing step of casting method automatically design the optimum width and thickness at the predetermined position of the flow path from the ingate and flow path information using the knowledge base,
The casting method generating step is a knowledge-based casting method automatic design method, characterized in that to form the shape of the designed flow path CAD model. The method of claim 7, wherein
The automatic design method of the knowledge-based casting method, characterized in that it further comprises the step of setting the working conditions. A computer-readable recording medium having recorded thereon a program for performing the method according to any one of claims 7 to 12.

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