Principles of Production and Processing in Precision Machining
Release time:
2023-04-11 15:18
Source:
In precision mechanical processing, many product workpieces are not manufactured in one go. Instead, when a product workpiece is initially manufactured, it is just a rough mold. If it is to become a genuine product when leaving the factory, it is necessary to rely on some mechanical equipment for precision mechanical processing. Different products require precision mechanical processing, and only in this way can they finally become products with application value.
In order to ensure the efficiency of precision mechanical processing and the qualified quality of the manufactured products, when carrying out precision mechanical processing, four major principles must be followed.
1. Determine the Datum First:
When using mechanical equipment to process products, a datum surface must be determined. In this way, there will be a positioning reference during subsequent manufacturing and processing. After determining the datum surface, the datum surface should be manufactured and processed first.
2. Divide the Manufacturing and Processing Stages:
When products are undergoing precision mechanical processing, different degrees of manufacturing and processing are required according to the requirements of different products. The manufacturing and processing degrees need to be divided. If the requirement for precision is not high, a simple rough machining stage will be sufficient. As the requirement for product precision becomes more and more stringent, the semi-finishing and finishing stages need to be carried out subsequently.
3. Machine the Plane First and then the Hole:
When carrying out precision mechanical processing, for product workpieces such as brackets, they need to be processed both on the plane and for mechanical holes. In order to reduce the precision error of the machined holes, machining the plane first and then the holes is beneficial for reducing the error.
4. Finishing Processing:
This basic principle of manufacturing and processing is roughly some grinding and polishing processes, which are generally carried out after the entire structure of the product is completed.
Precision mechanical processing is an operation process of changing workpieces, which is classified into two types: cold processing and heat treatment.
Precision mechanical processing is an operation process of changing the shape, size or application performance of workpieces with processing machinery. According to the ambient temperature of the workpiece being processed, it is divided into cold processing and heat treatment. Usually, processing at room temperature without causing chemical or phase changes of the workpiece is called cold processing. Usually, processing at a temperature higher or lower than room temperature, which will cause chemical or phase changes of the workpiece, is called heat treatment. Cold processing can be divided into cutting processing and pressure processing according to different processing methods. Commonly seen heat treatment methods include annealing, forging, casting and welding.
For materials such as steel and aluminum, under different material density conditions, the hardness and softness of the materials are relatively moderate. Technical engineers will fully consider the factors of the overall application performance to determine the materials. The different magnitudes of material density are closely related to the processing technology and cutting tools.
Precision mechanical processing still has some standards for materials. It is not the case that the same processing technology is used for all materials. For example, for materials that are too soft or too hard, for the former, common cutting tools can be selected and a large cutting amount can be used, while for the latter, cutting tools with high hardness are required or a small cutting amount should be used. Before precision mechanical processing, it is necessary to pay attention to the density of the material. If the density is too high, it is equivalent to a high hardness, and the requirements for the processing technology will also be high.
Previous Page
Next Page
Other Blog
It analyzes the latter three causes of abnormal rotation of the output flange of the spiral hydraulic rotary actuator (leakage of the main seal of the piston rod or end cover, dust accumulation and rust on the friction end face, and expansion of seals and bearings caused by incompatible hydraulic oil), puts forward targeted treatment schemes, and also mentions relevant daily maintenance precautions and technical support channels.
This article elaborates on the troubleshooting and solutions for various causes of abnormal rotation of the output flange of the hydraulic rotary actuator (including insufficient output torque, excessively small system flow, and internal leakage of the control or balance valve), and emphasizes the operational specifications and key points of daily inspections.
This article analyzes the causes and solutions for the problem of insensitive operation or no response of hydraulic rotary actuators.
This article analyzes the causes and solutions for the problem of failure to maintain position after rotating to the specified angle.
Hydraulic Rotary Actuator Common Problems and Solutions (Part 3): Insufficient Rotation Angle
This article analyzes the causes and solutions for the insufficient rotation angle of hydraulic rotary actuators.
After eliminating problems of the hydraulic rotary actuator itself, this article analyzes the causes and countermeasures of balancing valve holding pressure loss in hydraulic rotary actuators from the perspective of the balancing valve.
Consult immediately
Please contact us to obtain the hydraulic rotary actuator products and services you need.
Mobile phone official website