REFRIGERATED MOLDING SYSTEM FOR HOT, WARM AND COLD FORMING PROCESSES OF ALUMINUM ALLOY PLATES

Abstract

The invention is a method for cooling at least one workpiece (WP) during the forming of aluminum plates in a forming unit (F) associated with a press, for use in hot, warm and cold forming processes; its feature is characterized by the forming of the hot or warm workpiece in the forming unit (F) with a mold (10) filled with water in a chamber structure that allows heat transfer to occur from all surfaces in contact with the workpiece (WP).

Description

1 TARIFF HOT, WARM AND COLD FOR ALUMINUM ALLOY PLATES. REFRIGERATED MOLDING SYSTEM IN FORMING PROCESSES 5 TECHNICAL FIELD The invention relates to hot, warm, and cold applications in sheet metal forming processes. with innovations in production equipment suitable for use in shaping processes It is related. The invention, in particular, concerns the production of lightweight vehicle body parts made of aluminum alloy components. with a mold structure suitable for use in production with warm and cold forming processes. It is related. PREVIOUS TECHNIQUE With advancing technology, energy saving and emission reduction are becoming increasingly important in the global automotive industry. has become a common goal of manufacturers. In this environment, 15 in the automotive industry Lightweighting has become an inevitable trend. A significant... Aluminum alloy, as a lightweight material, has unique advantages over steel. It has become the second largest material supplier for the automotive industry. Molds are used during the shaping of metal materials to give the material a specific shape. Its form is changed under the influence of forces. During shaping, 20 the phase of the material determines the mechanical properties of the resulting molded product. This directly affects its properties. However, the cold of the aluminum alloy... The shaping properties are poor under shaping conditions. This includes wrinkles and cracks. The likelihood of defects occurring is high. In the known state of the art, in the hot forming process, the material is austenitized 25 heated to a certain temperature and held at that temperature for a specific period of time, then pressed under pressure. This is achieved by forming the material in special molds and then cooling it. The result of the process... The yield and tensile strength values ​​of the material increase by 2.5-3 times. 2 The formability properties of aluminum alloys are effectively maintained at high temperatures. This is improved, therefore warm styling (up to 500°C) solves this problem. It is an effective method and its area of ​​use is increasing every day. In the known technique, hot 5 and molds to be used in the shaping process in warm forming processes It is specially designed. In the mold steels in question (male and female molds) Multiple channels are opened and during shaping, these channels... Cooling of the warm material, which is intended to be shaped by passing cooling water through it. is provided. 10 PCT document with publication number WO2019205768A1 describes the hot aluminum materials. The text describes a method suitable for use in shaping processes. The subject of the application is the hot forming of aluminum sheet metal parts. The application refers to defined process stages. Molds containing multiple channel structures are used. 15 Conventional channel-cooled molds generally use high manganese metallurgy. more in hot forming of high-strength steel sheet materials It is suitable. In known technology, sheets with expansions of 22MNB5-30MNB5 are suitable. It is used in shaping. Furthermore, the high cost of producing conventional channel-cooled molds is another 20 That is a disadvantage. In conclusion, all the problems mentioned above necessitate innovation in the relevant field. It has brought it to this state. THE PURPOSE OF THE INVENTION The present invention aims to eliminate the problems mentioned above and to provide technical solutions in the relevant field. It is introduced with the aim of creating an innovation. The main purpose of the invention is to heat aluminum alloy sheet metal parts at hot, warm and cold temperatures. As an alternative to conventional channel-cooled molds in the molding process, production cost directly and positively affects production efficiency and quality. The aim is to reveal a reduced mold structure. 30 3 Another aim of the invention is to create complex, three-dimensional models using aluminum alloy plates. The aim is to enable the more cost-effective production of parts with specific geometries. Another purpose of the invention is to prevent wrinkles and 5 during the shaping of aluminum plates. The aim is to prevent defects such as cracks. Another aim of the invention is to improve mold manufacturing techniques, thereby reducing investment costs. to reduce. Another purpose of the invention is to develop aluminum plates in hot, warm and cold forming. 10 suitable for use, allowing for improvement of the hardness level of the finished product. The goal is to reveal the mold structure. A BRIEF DESCRIPTION OF THE INVENTION All the purposes mentioned above and those that will emerge from the detailed explanation below. The present invention aims to achieve hot, warm and 15°C treatment for aluminum alloy plates. It is an innovation in cold forming processes and a mold suitable for use in this process. The invention relates to hot, warm and cold forming processes of aluminum plates. At least one workpiece must be used in a forming unit associated with the press. It is a method for cooling during shaping; its characteristic feature is that it is hot or warm. The workpiece, located in the forming unit, has a chamber structure containing 20 It is characterized by being shaped using a mold that includes a cooling component. is being done. The invention relates to hot, warm and cold forming processes of aluminum plates. at least one workpiece to be used in the press, associated with at least one die cooling unit. A mold suitable for use, consisting of at least two parts, an upper mold and a lower mold. 25 Its characteristic feature is that the upper and lower molds are made of matching metal materials. The upper and lower molds mentioned above are processed by positioning the coolant component, which is a liquid, inside. to ensure heat transfer occurs from all surfaces in contact with the part. The cooler is created by hollowing out the upper and lower molds mentioned above. It is characterized by containing a reservoir. 30 4 The invention specifically addresses temperatures up to 500°C, which are defined in the literature as lukewarm. It relates to the production equipment structure suitable for use in shaping processes. In another preferred configuration of the invention, the upper mold is made of steel and 5 Includes a lower mold. In another preferred configuration of the invention, the molds are transferred from the mold cooling unit. the coolant component which is the water circulated into the coolant reservoir inside It includes. In another preferred configuration of the invention, all 10 parts of the mold that come into contact with the workpiece a chamber structure filled with water that allows heat transfer to occur between its surfaces The shaping process is carried out by cooling using a mold. The scope of protection for the invention is specified in the claims, and this is absolutely concise and detailed. The explanation cannot be limited to what is given for illustrative purposes. A technically expert person... The person, without deviating from the main theme of the invention, can create similar 15 based on the above-mentioned points. It is clear that these structures can emerge. BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a diagram illustrating the hot, warm, and cold forming processes. Figure 2 shows a representative cross-sectional drawing illustrating the mold structure used within the scope of the invention. It has been given. 20 Figure 3 shows a representative cross-section drawing of a chamber / pool formwork system structure. It has been given. The drawings are not intended to limit the scope of protection defined in the claims. and to interpret the scope defined in those claims, the present invention 25 referring to these in isolation without resorting to the technical explanation in the statement should not be included. The drawings in question clarify and define the invention. It aims to... EXPLANATION OF REFERENCE NUMBERS IN THE FIGURES Mold 10 11. Upper mold 5 12. Bottom mold 13. Cooling compartment 20. Cooling component 30. Mold cooling unit F. Shaping unit 10 HT. Heat treatment unit. T. Transfer Unit WP. Workpiece DETAILED DESCRIPTION OF THE INVENTION This detailed description covers hot, warm and 15°C aluminum alloy plates for the invention. Innovation in cold forming processes and molds suitable for use in this process (10) simply to facilitate a better understanding of the subject without creating any limiting effects. This is explained with examples. The subject of the invention is, in particular, a lightweight vehicle body composed of aluminum alloy components. 20 used in the production of parts using hot, warm and cold forming processes. It is related to the appropriate mold (10) structure. The invention relates to hot, warm and cold forming processes of aluminum plates. At least one workpiece (WP) for use, forming associated with the press. It is a method for cooling during the shaping of the unit (F); its characteristic is that it is warm. 25 in the chamber structure located within the forming unit (F) of the workpiece It is characterized by being shaped using the mold (10) found with the cooling component (20). is being done. 6 The invention is designed for use in warm forming processes of aluminum plates, at least. a workpiece (WP) for use in a press associated with at least one die cooling unit (30). suitable, mold (10) 5 consisting of at least two parts, upper mold (11) and lower mold (12). and its feature is that the upper mold (11) and lower mold are made of metal material that are compatible with each other. The coolant component (20), which is liquid, is positioned inside the mold (12) of the mentioned upper mold. Heat from all surfaces of the (11) and lower die (12) in contact with the workpiece (WP) In order to ensure that the transfer takes place, the aforementioned upper mold (11) and lower mold (12) characterized by containing a cooling chamber (13) created by hollowing out the inside. is being done. Figure 1 shows a warm forming process in which the mold (10) that is the subject of the invention is used. The configuration is given. In the preferred configuration, the workpiece (WP) is sheet metal. It is aluminum. The workpiece (WP) is heated in the heat treatment unit (HT) and subjected to at least one It is shaped by being transferred from the transfer unit (T) to the forming unit (F). 15 The forming unit (F) includes at least one press, with an upper die (11) and a lower die on the press. The mold (12) is connected. Force is applied to the workpiece (WP) through the mold (10) in the press. circulates through the mold (10) parts from the mold cooling unit (30) while being applied Cooling component (20) is conveyed. The aforementioned press forming During this process, the workpiece (WP) is shaped while warm and under the effect of the cooling component (20) 20 Cooling is provided to the workpiece (WP) with the upper die (11) and the lower die (12). After shaping, the surfaces in contact with each other are cooled to achieve the desired hardness and yield. The values ​​are obtained. The shaped workpiece (WP) is preferably the best. It is taken out of the mold (10) with a small transfer unit (T) and brought to the ambient temperature equal to the ambient temperature. It is kept waiting for 25 days. Figure 2 shows a representative cross-section drawing of the mold (10) used in the press. Mold (10) preferably it consists of two parts, upper mold (11) and lower mold (12), and the upper mold (11) and the lower mold (12) are congruent in structure. The workpiece (WP) is the aforementioned upper mold. (11) and the lower mold (12) are positioned between the press and preferably the lower mold (11) With the movement in the direction of the mold (12), the workpiece (WP) takes the form of the mold (10). 30 The upper mold (11) and the lower mold (12) are emptied and with the aforementioned emptying structure A reservoir form with a cooling reservoir (13) has been created. The mentioned cooling reservoir The container (13) is in a closed form inside the upper mold (11) and the lower mold (12) and inside 7 The coolant component (20), preferably water, can circulate. The mentioned circulation It is carried out under the supervision of the mold cooling unit (30) and mold parts (10) and mold Fluid 5 with hose / pipe configurations located between cooling unit (30) The circuit is being completed. The subject of the invention is the forming process using a mold (10) with a reservoir structure. It has been specifically developed for aluminum alloys. This allows for the processing of aluminum alloys. Tearing and deformation problems have been eliminated in the shaping processes. In tests and experiments conducted as part of an application of the invention, the cooling chamber (13) 10 heat transfer coefficient between the water in the reservoir and the mold (10) surface The convection coefficient of the designed molds (10) is 24W / mC. Preferred The mold in the structure (10) is made of QRO90 steel. In an example setup, in conventional channel molds, the mold temperature (10) is 20C° In the passage of water, which is a coolant at 5°C, only in the channel areas is the temperature 5°C 15 While water is found, the mold (10) in the specified regions in the application within the scope of the invention The entire reservoir volume contains water at 5°C. Thanks to this invention, the coolant... Its volume has been increased. With a preferred configuration of the invention, five different samples were developed. Microhardness measurements were taken at 20 points. The microhardness test was performed at 100 microns. It was done in intervals with 200g and in 10 seconds. In this measurement, from an unshaped sample of this aluminum material While the hardness values ​​obtained were 112.3 ± 4.4 HV1, the mold (10) within the scope of the invention was warm. As a result of shaping, the hardness values ​​were improved to 126 ± 5 HV1. The same The strength values ​​have also increased accordingly. 25 The scope of protection of the invention is specified in the claims attached hereto, and these details are strictly adhered to. The explanation cannot be limited to those given for illustrative purposes. Because a technically skilled person... the person, without deviating from the main theme of the invention, uses the above-mentioned principles and technical drawings. It is clear that similar structures can emerge in light of this.

Claims

8 REQUESTS 1. In hot, warm and cold forming processes of aluminum plates At least one workpiece (WP) to be used, forming associated with the press 5 It is a method for cooling during the shaping of the unit (F); its feature is that the workpiece is hot or warm inside the forming unit (F). mold (10) with cooling component (20) in the chamber structure It is characterized by being shaped using [method / technology].

2. In hot, warm and cold forming processes of aluminum plates At least one workpiece (WP) and at least one mold cooling unit for use. Suitable for use in the press associated with (30), including upper mold (11) and lower mold (12). The mold consists of at least two parts (10); its characteristic is, The upper mold (11) and the lower mold (12) made of matching metal material are 15 The coolant component (20) which is liquid is positioned inside the mentioned upper mold (11) and heat from all surfaces of the lower die (12) in contact with the workpiece (WP) In order to ensure that the transfer takes place, the aforementioned upper mold (11) and lower by having a cooling chamber (13) formed by hollowing out the inside of the mold (12) It is characterized by... 20 3. Compliant with request 2, including upper mold (11) and lower mold (12) made of steel material. shaping mold (10).

4. Cooler 25 located inside the molds (10) from the mold cooling unit (30). Request 2 or containing the coolant component (20) which is water circulated into its reservoir (13). Suitable shaping mold for 3 (10).

5. Heat transfer from all surfaces of the mold (10) in contact with the workpiece (WP) The reservoir structure that enables this to happen is filled with water (10) and 30 A method conforming to requirement 1 where shaping is done by cooling.

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