Since the reform and opening up, the frequent changes in the economic model and the increasingly active market economy have brought profound changes and substantial development and progress to my country’s traditional industries. The rapid development of social economy has had a huge impact on the production, processing and business models of traditional industrial enterprises. In the face of various technical difficulties and technological difficulties encountered in sheet metal machining in the process of practice, it is necessary to conduct in-depth analysis and interpretation of the causes. Combined with the technical improvement space and ideas of related machining, corresponding solutions are given to help machining enterprises to further improve the industrial model of automated production and processing, and at the same time, improve the efficiency and product quality of sheet metal machining.

1 Difficulties in sheet metal machining process

In the industrial manufacturing and parts processing industry, the sheet metal machining process mainly refers to the special processing of a metal sheet of a specific shape through manual and mold screening to make it a machine of a specific shape and size. Machining parts. The treatments used in this process include welding and machining of small parts. Thus, the metal sheet can form more complex and diverse shape changes. Commonly found in homes, the fuel tanks, ventilation ducts, iron pots, funnels, elbows and casings of various electronic equipment that people touch and use on a daily basis are all mechanical components obtained by sheet metal processing. Sheet metal components usually do not have a fixed structural form, and their types and styles are very diverse. Therefore, when designing and producing sheet metal products, the actual function of the production line should be given priority. In order to meet the needs of actual production functions, the designed sheet metal processing parts, from structure to shape, are in line with the basic characteristics of low production cost, beautiful appearance, and durability. Sheet metal components usually require differentiated designs according to specific uses and needs. Different forms of sheet metal parts can be obtained according to different design schemes and design structure requirements. In general, the design of sheet metal components does not have a fixed method and law, but needs to be changed according to the functional requirements of specific application products. This is the main and difficult problem to be faced by the sheet metal machining process at this stage.

2 Sheet metal machining and its automation

2.1 Automated processing flow

The machining of sheet metal parts needs to be done according to a specific mechanized process. First of all, the preparation for the initial stage of processing is completed by placing and fixing the material in a specific position. Then the mechanical processing of sheet metal components is carried out. The sheet metal raw materials used in the processing process must be combined with automation technology and carried out in accordance with the standards and operating procedures of Cnc automation. During processing, the sheet metal parts processing dimension drawings and molds provided by the demander shall be processed in an orderly manner, and the automatic sheet metal mechanical parts processing shall be completed by using numerical control technology. In the process of processing, in addition to well-fixed metal materials, it is also necessary to always pay attention to whether the metal materials are loose, offset and shaken, so as to avoid displacement and deformation caused by grinding and vibration during processing, which will ultimately affect the quality of the finished product. quality. On the other hand, in the process of processing, it is necessary to judge whether the placement position of the metal material is vertical, and whether the angle of the component itself meets the needs of the user. The input time and sequence of various materials will also directly affect the efficiency of machining and the quality of the output products. To this end, it is necessary to pay full attention to the nesting process of the machine tool and to monitor the overlap and shedding of various parts in real time as much as possible in the process. Once it is found that the material deviates from the original position, the resulting gap should be dealt with in time to avoid the impact on the processing quality of other sheet metal parts due to continued mechanical operation. On the whole, to ensure the quality of sheet metal machining and the rationality of the process, it is necessary to scientifically control and select the appropriate timing of the processing technology and processing, and to strengthen the relevant standards in the standardization of the operation process.

2.2 The way of automatic processing of sheet metal machinery

There are many ways to automate sheet metal processing in machining production lines. A higher yield can be obtained through the application of processing methods such as continuous blanking. This method can be divided into multi-direction and single-direction according to the different processing directions. Multi-directional blanking is a processing process performed on large metal materials, while unidirectional processing is usually used to uniformly process multiple metal parts in a stacked shape. The machining angles and machining processes required by different methods are also different. A variety of processing techniques can be used together to achieve a variety of sheet metal processing effects. The application method of single stamping can carry out the shaping and processing of metal products in the process of sheet metal processing, on the premise of ensuring the structural separation of metal raw materials with arc-shaped distribution and pinhole distribution. In addition, the comprehensive application of single and multiple continuous processing methods in sheet metal machining can also work together with the parameter adjustment of CNC machine tools and the differentiated customization of molds to meet the one-time stretching and shaping needs of various metal parts. This processing method can obtain metal parts that match the mold, and improve the convenience of operation in the subsequent finishing process. Before the application of grinding and finishing on sheet metal parts, precise positioning needs to be completed in advance. At the same time, the application of the array forming method can also improve the production efficiency of CNC machine tools.

2.3 Features of sheet metal automatic machining

Combined with the analysis of long-term practical experience in production and processing, it is not difficult to see that automatic machining of sheet metal has distinct characteristics. Using the mature processing solutions of CNC machine tools can not only improve the convenience of sheet metal processing and other operations, but also further reduce processing costs. The scientific and reasonable application of CNC machine tools can decompose the processing process into multiple steps, and complete a series of operations such as forming and processing the target metal according to specific processing requirements and drawings. The machining of CNC machine tool sheet metal can greatly reduce the production and processing time, and achieve a significant improvement in the overall processing efficiency. In addition, the yield of output products can also be effectively guaranteed. The improvement of processing accuracy and production efficiency has fully confirmed that the automated sheet metal processing method has broad application prospects and development space. In the automatic processing of sheet metal machinery, the homogenization and the processing of the same batch of materials can be uniformly distributed in quality and maintain a relatively ideal product quality. The higher yield also eliminates the need for manual screening steps required in traditional processing. This kind of processing scheme, which perfectly integrates industrial technology and modern automated processing theory, completely realizes the modernization and intelligence of sheet metal machining.

2.4 Insufficiency of sheet metal automatic machining

Sheet metal automatic machining also exposes some deficiencies and defects in the process of machining technology development. For example, the application of CNC machine tools has the potential to cause extrusion damage to sheet metal materials. The frequent occurrence of this problem is directly related to the phenomenon of foreign matter and impurities on the surface of the processed raw materials. Therefore, in the actual processing process, special attention should be paid to the quality control of raw materials. At the same time, this phenomenon will also cause scratches and material deformation in the processing of sheet metal, which directly endanger product quality, which must be paid attention to and properly solved.

3 Improvement measures for sheet metal machining and its automation

3.1 Material selection for sheet metal machining

The materials and sheets used for sheet metal machining must go through strict screening procedures before they can be put into actual processing and production. Reduce production costs on the premise of ensuring the strength of metal materials. When using the processing materials of the same structure, all kinds of plates with the same specifications should be placed in one place. There should be no more than three types of plates with the same thickness, and high-efficiency utilization should be paid attention to during processing to avoid waste and other phenomena. For high-strength sheet metal processing operations, methods such as thin plate beading can be used to meet processing needs. At present, some of the sheet metal processing materials supplied on the market do not meet the actual needs of users. Strict testing and screening must be carried out in terms of the size and outline of sheet metal machining parts. In addition, some materials are sprayed with specific materials on the decorative surface, which also affects the stability of the sheet metal material and imposes certain constraints on the scope of its application. There is no need to pay too much attention to the aesthetics of sheet metal materials that are not exposed on the outer surface. At the same time, the texture and surface finish of the sheet metal material to be exposed must be strictly controlled to avoid unnecessary damage such as scratches and reduce the utilization rate of the material.

3.2 Design and processing of hole-deficient structure

Some sheet metal machining materials need to be punched at specified positions. For the convenience of operation, in the later stage of sheet metal processing, the square hole at the root of the processing part can be punched in advance, so as to avoid the deformation of the hole position caused by the overall stretching of the sheet metal after the sheet metal processing. This method can also avoid the problem that the manual drilling operation is too difficult during machining. If the sheet metal parts need to be drilled with threaded holes, thread dies of different specifications can be used to complete the operation. The welding process occupies a large proportion in the overall process of sheet metal machining. In addition to ensuring the appearance of the product without damage, the surface joints of the sheet metal parts must also be properly treated. The welds at the corners need to be processed and polished to avoid the impact of the gaps caused by welding on the use of sheet metal materials.

4 Conclusion

Modern industrial enterprises are gradually changing to mechanized, standardized and automated production methods and models, and the fields of automated processing they are involved in are also gradually expanding. In the machining process, the machining quantity of sheet metal products accounts for a large proportion. The goal of fully automatic production and processing is an important technological breakthrough that must be achieved by modern machining enterprises in the process of development, and it is also an important symbol that symbolizes the development of my country’s industrialization to a new level. In the field of sheet metal machining, the application of advanced machining technology and automated production methods has brought direct economic benefits to related machining enterprises. Modern machining methods help to improve the processing quality and automation level of sheet metal parts. It is necessary to start from various aspects to improve the application effect of sheet metal machining and its automation.

 

 

 

 

 

 

 


 

 

 

 

 

Since the reform and opening up, the frequent changes in the economic model and the increasingly active market economy have brought profound changes and substantial development and progress to my country’s traditional industries. The rapid development of social economy has had a huge impact on the production, processing and business models of traditional industrial enterprises. In the face of various technical difficulties and technological difficulties encountered in sheet metal machining in the process of practice, it is necessary to conduct in-depth analysis and interpretation of the causes. Combined with the technical improvement space and ideas of related machining, corresponding solutions are given to help machining enterprises to further improve the industrial model of automated production and processing, and at the same time, improve the efficiency and product quality of sheet metal machining.

 

1 Difficulties in sheet metal machining process

 

In the industrial manufacturing and parts processing industry, the sheet metal machining process mainly refers to the special processing of a metal sheet of a specific shape through manual and mold screening to make it a machine of a specific shape and size. Machining parts. The treatments used in this process include welding and machining of small parts. Thus, the metal sheet can form more complex and diverse shape changes. Commonly found in homes, the fuel tanks, ventilation ducts, iron pots, funnels, elbows and casings of various electronic equipment that people touch and use on a daily basis are all mechanical components obtained by sheet metal processing. Sheet metal components usually do not have a fixed structural form, and their types and styles are very diverse. Therefore, when designing and producing sheet metal products, the actual function of the production line should be given priority. In order to meet the needs of actual production functions, the designed sheet metal processing parts, from structure to shape, are in line with the basic characteristics of low production cost, beautiful appearance, and durability. Sheet metal components usually require differentiated designs according to specific uses and needs. Different forms of sheet metal parts can be obtained according to different design schemes and design structure requirements. In general, the design of sheet metal components does not have a fixed method and law, but needs to be changed according to the functional requirements of specific application products. This is the main and difficult problem to be faced by the sheet metal machining process at this stage.

 

2 Sheet metal machining and its automation

 

2.1 Automated processing flow

 

The machining of sheet metal parts needs to be done according to a specific mechanized process. First of all, the preparation for the initial stage of processing is completed by placing and fixing the material in a specific position. Then the mechanical processing of sheet metal components is carried out. The sheet metal raw materials used in the processing process must be combined with automation technology and carried out in accordance with the standards and operating procedures of CNC automation. During processing, the sheet metal parts processing dimension drawings and molds provided by the demander shall be processed in an orderly manner, and the automatic sheet metal mechanical parts processing shall be completed by using numerical control technology. In the process of processing, in addition to well-fixed metal materials, it is also necessary to always pay attention to whether the metal materials are loose, offset and shaken, so as to avoid displacement and deformation caused by grinding and vibration during processing, which will ultimately affect the quality of the finished product. quality. On the other hand, in the process of processing, it is necessary to judge whether the placement position of the metal material is vertical, and whether the angle of the component itself meets the needs of the user. The input time and sequence of various materials will also directly affect the efficiency of machining and the quality of the output products. To this end, it is necessary to pay full attention to the nesting process of the machine tool and to monitor the overlap and shedding of various parts in real time as much as possible in the process. Once it is found that the material deviates from the original position, the resulting gap should be dealt with in time to avoid the impact on the processing quality of other sheet metal parts due to continued mechanical operation. On the whole, to ensure the quality of sheet metal machining and the rationality of the process, it is necessary to scientifically control and select the appropriate timing of the processing technology and processing, and to strengthen the relevant standards in the standardization of the operation process.

 

2.2 The way of automatic processing of sheet metal machinery

 

There are many ways to automate sheet metal processing in machining production lines. A higher yield can be obtained through the application of processing methods such as continuous blanking. This method can be divided into multi-direction and single-direction according to the different processing directions. Multi-directional blanking is a processing process performed on large metal materials, while unidirectional processing is usually used to uniformly process multiple metal parts in a stacked shape. The machining angles and machining processes required by different methods are also different. A variety of processing techniques can be used together to achieve a variety of sheet metal processing effects. The application method of single stamping can carry out the shaping and processing of metal products in the process of sheet metal processing, on the premise of ensuring the structural separation of metal raw materials with arc-shaped distribution and pinhole distribution. In addition, the comprehensive application of single and multiple continuous processing methods in sheet metal machining can also work together with the parameter adjustment of CNC machine tools and the differentiated customization of molds to meet the one-time stretching and shaping needs of various metal parts. This processing method can obtain metal parts that match the mold, and improve the convenience of operation in the subsequent finishing process. Before the application of grinding and finishing on sheet metal parts, precise positioning needs to be completed in advance. At the same time, the application of the array forming method can also improve the production efficiency of CNC machine tools.

 

2.3 Features of sheet metal automatic machining

 

Combined with the analysis of long-term practical experience in production and processing, it is not difficult to see that automatic machining of sheet metal has distinct characteristics. Using the mature processing solutions of CNC machine tools can not only improve the convenience of sheet metal processing and other operations, but also further reduce processing costs. The scientific and reasonable application of CNC machine tools can decompose the processing process into multiple steps, and complete a series of operations such as forming and processing the target metal according to specific processing requirements and drawings. The machining of CNC machine tool sheet metal can greatly reduce the production and processing time, and achieve a significant improvement in the overall processing efficiency. In addition, the yield of output products can also be effectively guaranteed. The improvement of processing accuracy and production efficiency has fully confirmed that the automated sheet metal processing method has broad application prospects and development space. In the automatic processing of sheet metal machinery, the homogenization and the processing of the same batch of materials can be uniformly distributed in quality and maintain a relatively ideal product quality. The higher yield also eliminates the need for manual screening steps required in traditional processing. This kind of processing scheme, which perfectly integrates industrial technology and modern automated processing theory, completely realizes the modernization and intelligence of sheet metal machining.

 

2.4 Insufficiency of sheet metal automatic machining

 

Sheet metal automatic machining also exposes some deficiencies and defects in the process of machining technology development. For example, the application of CNC machine tools has the potential to cause extrusion damage to sheet metal materials. The frequent occurrence of this problem is directly related to the phenomenon of foreign matter and impurities on the surface of the processed raw materials. Therefore, in the actual processing process, special attention should be paid to the quality control of raw materials. At the same time, this phenomenon will also cause scratches and material deformation in the processing of sheet metal, which directly endanger product quality, which must be paid attention to and properly solved.

 

3 Improvement measures for sheet metal machining and its automation

 

3.1 Material selection for sheet metal machining

 

The materials and sheets used for sheet metal machining must go through strict screening procedures before they can be put into actual processing and production. Reduce production costs on the premise of ensuring the strength of metal materials. When using the processing materials of the same structure, all kinds of plates with the same specifications should be placed in one place. There should be no more than three types of plates with the same thickness, and high-efficiency utilization should be paid attention to during processing to avoid waste and other phenomena. For high-strength sheet metal processing operations, methods such as thin plate beading can be used to meet processing needs. At present, some of the sheet metal processing materials supplied on the market do not meet the actual needs of users. Strict testing and screening must be carried out in terms of the size and outline of sheet metal machining parts. In addition, some materials are sprayed with specific materials on the decorative surface, which also affects the stability of the sheet metal material and imposes certain constraints on the scope of its application. There is no need to pay too much attention to the aesthetics of sheet metal materials that are not exposed on the outer surface. At the same time, the texture and surface finish of the sheet metal material to be exposed must be strictly controlled to avoid unnecessary damage such as scratches and reduce the utilization rate of the material.

 

3.2 Design and processing of hole-deficient structure

 

Some sheet metal machining materials need to be punched at specified positions. For the convenience of operation, in the later stage of sheet metal processing, the square hole at the root of the processing part can be punched in advance, so as to avoid the deformation of the hole position caused by the overall stretching of the sheet metal after the sheet metal processing. This method can also avoid the problem that the manual drilling operation is too difficult during machining. If the sheet metal parts need to be drilled with threaded holes, thread dies of different specifications can be used to complete the operation. The welding process occupies a large proportion in the overall process of sheet metal machining. In addition to ensuring the appearance of the product without damage, the surface joints of the sheet metal parts must also be properly treated. The welds at the corners need to be processed and polished to avoid the impact of the gaps caused by welding on the use of sheet metal materials.

 

4 Conclusion

 

Modern industrial enterprises are gradually changing to mechanized, standardized and automated production methods and models, and the fields of automated processing they are involved in are also gradually expanding. In the machining process, the machining quantity of sheet metal products accounts for a large proportion. The goal of fully automatic production and processing is an important technological breakthrough that must be achieved by modern machining enterprises in the process of development, and it is also an important symbol that symbolizes the development of my country’s industrialization to a new level. In the field of sheet metal machining, the application of advanced machining technology and automated production methods has brought direct economic benefits to related machining enterprises. Modern machining methods help to improve the processing quality and automation level of sheet metal parts. It is necessary to start from various aspects to improve the application effect of sheet metal machining and its automation.

 

 

 

 

 

 

 


 

 

 

 

 

Sheet fabrication services for mild steel, high strength low alloy (HSLA) steel, cold/hot rolled steel, galvanized steel, stainless steel, aluminum, copper and brass. Capable of fabricating parts up to 12 ft. length and +/-0.001 in. tolerance. Various capabilities include contract manufacturing,custom stamping,edge rolling, forming,top laser cutting, roll bending and welding. Finishing and secondary services such as hardware installation, tapping, deburring, cleaning, heat treating, plating, anodizing and painting available. Sheet Metal Prototype and low to high volume production runs offered. Suitable for commercial/residential architectural, aluminum brake shape parts, wall Panel systems, brackets, general flashings, rails, call button plates and ship building component parts.