The use of worn-out equipment and the work of poorly qualified personnel leads to inaccuracies in the manufacture of metal products. For most parts finishing allows you to achieve maximum accuracy in assembly and longer operation of the mechanism. There is no need for subsequent modifications during the assembly process. It is for this reason that the quality of a product is determined primarily by the accuracy of its manufacture.
Criteria for determining accuracy
To ensure that parts are not returned for manual revision or are not classified as defective, it is necessary to maintain the accuracy of the geometric shapes. Initially, they are determined by a pre-drawn drawing. It is from this that the specialist starts when he enters information into the program control of the machine in order to obtain the required part at the output. It is worth adding to other equally important criteria:
- The workpiece has the necessary technical and physical parameters.
- The workpiece is large enough so that the metal does not have to be welded.
- li>The degree of finishing is determined by the material and tool.
- During the manufacturing process, the parameters of the part do not exceed the error limits.
- All components correspond to the original drawing.
Important: expensive, modern equipment with the necessary interchangeable tools can provide the necessary accuracy of even a small part. But the decisive role will be played by a specialist who will directly oversee the operation of the equipment. Corrects its work in a timely manner and prevents defects from occurring.
Applicable accuracy criteria
In industry there are several categories of accuracy. Each has its own scope of application, which is allowed by the equipment or other technical or operational parameters:
- 6 CT, fairly rough parts, workpieces;
- 5 CT, non-critical components manufactured large batch;
- 4 CT (3 CT), standard for most internal combustion engines;
- 2 CT, requires highly qualified specialists, minimum tolerances;
- 1 CT , highly precise parts produced in small batches.
For most tasks, average values of accuracy are sufficient, at which the cost of manufactured components and their reliability correspond to each other. But, if necessary, specialists can always achieve more accurate values.
