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Name：Rebecca Dong
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The application of intelligent technology for the manufacturing process of the mould manufacturing process. |
1. Selection and optimization of process route and process parameters.
The selection and optimization of process route and process parameters is a very important step in the development of processing procedures. The determination of process parameters from process route is a process from qualitative to quantitative. When determining the process route, the technologist gives a feasible scheme based on the existing conditions and based on personal knowledge or experience. The subjectivity of the process is strong, and there are different technological approaches, so there are usually a variety of feasible schemes. In order to select a better or optimal solution from different schemes, the process evaluation of different schemes must be carried out.
First, you must determine a reasonable set of process evaluation standard. Then the comprehensive evaluation of different processing plan. By rights, evaluation process must be at the same time, the selection of process route and to evaluate the choice of process parameters is complete. But, when making procedure, the choice of process route and the selection of process parameters was done at different stages. If one by one at the same time in the selection process when trying to determine the relevant process parameters, there are times when it is impossible to achieve, sometimes even can be achieved, however, determine the process parameters is quite laborious. For example, a group in order to find out the optimal process parameters, we have to spend most of the numerical control programming time. If the process route selection scheme is more, so only the cost of this part will be considerable, and eventually improve the extent of not clear, therefore, it is unsatisfactory. According to process engineering work practice, the general first in their overall planning process route is determined, according to the knowledge or experience to evaluate different process routes, countersigned by process, select one of the better craft route options. There are a lot of evaluation index is based on the empirical knowledge of qualitative is given, such as "good" and "good" some fuzzy language. Most of the evaluation methods are obtained from the production practice, with good accuracy, easy to reach consensus in process demonstration, but without obvious theoretical basis. That is to say, the use of these evaluation criteria to select the plan would not necessarily be optimal, but learn from practice, if evaluators have the solid specialized knowledge or experience, such schemes are generally better trustworthy, on this basis, we further to determine a limited ((1 -} 2) the optimal process route options related to the process parameter selection and optimization. It has been proved that this part of work has great influence on the optimization of technological process.
From the above analysis, the following conclusions can be drawn:
1) in practice, the selection and optimization of technological route and process parameters are carried out at different stages. Therefore, we can choose and optimize the process route and process parameters, which may not be the best, but the results are generally better when chosen properly.
2) in making the process procedures, generally there is a variety of process route selection scheme, evaluation of process route selection scheme is usually qualitative, its accuracy is closely related to the evaluators knowledge or experience.
3) this part of work is particularly important because the selection and optimization of process parameters have a great impact on the quality of the process.
2. Selection and optimization of machining process route based on machining characteristics.
Let's review the traditional process of determining the process. First, the technologists accept a task, which includes the information of injection molding products, technical requirements and deadlines. Then, the technologist is able to absorb the injection molding products, find the feasible processing route according to their own professional knowledge experience and field conditions, and select the processing route. Finally, a reasonable processing route is determined. The technologist may propose to modify the design of injection molding products under various conditions which cannot meet the technical requirements or meet such technical requirements. Common practice has two kinds: one is the reference for the similar injection molding processing products of the typical process route, controlled injection molding processing products for details on the modification, get feasible process route, it is suitable for the type of relatively concentrated injection molding processing products, the second is the lack of resources for injection molding processing products, usually according to the experience of the craftsmen's knowledge and grasp of the condition on site conditions, to determine the ultimate way of processing, reverse launch each craft link, to determine a feasible technique route. In the process of computerization, the former is the key to establish a typical process is putted forward, through certain search method, can obtain a better result, like body parts, shaft parts and the processing route of standard mould base can consider to use this method. For the working parts of die processing, in this way is not good. . This is due to the different working parts of die geometry most each are not identical, generally divided into "punch (dynamic modulus)", "die (mould)". This kind of classification is too abstract, actually do not have reference value. If the classification of mold types according to different injection molding products is too complicated, it will make the categories too large to be conducive to information search and management, so it is appropriate to adopt the second method.
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Down：The implementation method of the concrete steps of injection mold preparation.
Up：Injection molding problem solving. |
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