Synthesize the mechanical processing process to complete the product

Đăng bởi noidung - 16:48 11/05/2022

Synthesize the mechanical processing process to complete the product
In a mechanical factory, to manufacture a mechanical product (details, structural assemblies, equipment…) requires going through a complex mechanical manufacturing process. The preforms (casting, forging, stamping…) after manufacturing the workpiece are put into the mechanical workshop for processing on machine tools (turning, milling, planing, drilling, reaming, tooth cutting, grinding…), cold processing and correcting, heat treatment… to create finished products with the required shape, size, and quality.
The process to turn raw materials and semi-finished products into the required products is called manufacturing in a mechanical factory. The mechanical processing process can be divided into many different processes such as: blanking, cutting, heat processing, chemistry, assembly, repair, tooling and recovery, and transportation. …
10 steps of finishing mechanical processing
1. Design drawings
The first thing to create perfect machine parts, we need to study the details of drawings, learn the function of each part and classify them.
In particular, when designing drawings, it is necessary to meet the necessary technical requirements of the product as well as meet modern technologies at each time.
2. Determine the type of production
– Production form is a characteristic concept that gives information about the production object (output, stable properties …). Based on the type of production to determine the ways, technological measures and production organization to manufacture products with the highest quality and economic efficiency.

– Production form is divided into single production form, mass production form, mass production form.

Single-unit production: is the production with very little annual output (usually from one to several dozen units), unstable products, no re-production cycle.
Mass production: is the production with a relatively large annual output, the products are manufactured in batches, have a definite cycle, and the products are stable.
Mass production: is the production with large volume, the product is very stable, the product is manufactured continuously and for a long time.
3. Selecting the workpiece and the method of making the workpiece
– Select the workpiece in accordance with the requirements of the product.
– The size of the workpiece is determined by the amount of residual machining in the technological process.
– Choosing the right workpiece not only ensures the mechanical properties of the workpiece, but also reduces the cost of materials and processing costs, improves productivity and lowers product costs.
– Methods in making embryos:
Casting: casting in sand mold, casting in metal mold, pressure casting, centrifugal casting….
Pressure processing: steel rolling, free forging, volume stamping, …
Workpiece from welding….
– Common materials for making ingots: Steel, cast iron, plastic, copper, aluminum….
4. Determine the order of operations, steps
– When designing the technological process for processing machine parts, it is necessary to determine the reasonable order of operations and steps so that the complete machining cycle of a part is the shortest, ensuring the quality of processing at low cost. the shortest.
– The order of machining the surfaces of the machine part depends on the logic of the state transformation process, the properties of the machine part, the theory of technological standards and specific production conditions.
5. Select equipment for operations
– Reasonable selection of equipment, tools, and fixtures has a great influence on the quality, productivity and cost of detailed processing. Therefore, when designing a detailed processing technology process, it is necessary to analyze and consider carefully when determining and selecting equipment, tools, and fixtures…
6. Determination of machining allowance for operations, steps
– After offering technological options for processing details, people usually compare the options to choose the most effective and reasonable one in the given production conditions. From the selected technological process plan, documents and technology sheets will be developed to guide production and serve the management, monitoring, calculation…
7. Define cutting mode in operations, steps
– Calculation and selection of cutting modes (s, v, t…) suitable for each operation to ensure that the products are processed with optimal accuracy.
8. Select jigs for each operation, steps
– Choose suitable jigs to ensure tight clamping when machining parts.
9. Processing products on machines
– Perform product processing on machines: milling, turning, drilling, boring, boring, grinding….
10. Product inspection after processing
Using measuring tools such as: Micrometer, caliper, 2D, 3D measuring machine…
– Check the accuracy, surface gloss of the product according to the technical requirements.
The above is an overview of the necessary steps in the mechanical product machining process . Hopefully, through my article, you will know more about the necessary steps in the process of machining mechanical products.

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