Shaft fabrication

Contents

Contents:

Introduction

Summary

Define Production Type

Part Utility and Processability Analysis

Procurement Selection

Development of routing process

shaft fabrication

Define workpiece tolerances, operational dimensions, and dimensions

Design of the keyway milling process

Process rationing of operations

Designing an Alternative Process Operation

milling of key slots with pendulum feed

Process rationing of operations

Feasibility study of the project

process

Calculation of machine tool

Conclusion

List of literature

Application

Introduction

The basis of the national economy that determines its technological level is mechanical engineering. Mechanical engineering ensures the reproduction of fixed assets of all branches of the national economy and the need of the population for machine-building products. The effectiveness of structural transformations in the country's economy, the well-being of the people and the defense capacity of the state depend on the level of development of engineering.

Modern machines are characterized by an increase in their productivity, speed, specific power and reliability, while reducing weight and overall indicators. This entails the use of new high-strength, special properties structural materials, which in most cases are difficult to process. However, technological progress is determined not only by the improvement of machine structures, but also by the continuous improvement of their production technology. The development of manufacturing processes for parts is one of the critical stages of production preparation. The processes shall ensure high quality of the products in accordance with the operating specifications at minimum time and expense.

The following main areas contribute to the successful solution of current problems of machine production technology:

flexible resource-saving technology of machine-building production;

quality management of competitive engineering products;

programmable automation of production processes

economics of introduction of new technologies, etc.

The purpose of the course project is to acquire skills in the development of a route technological process for the manufacture of a given part, an operational technological process for the performance of individual operations, the design of machine tools and control devices.

In this course project, an attempt was made to build a technology for processing a shaft part based on basic technology, taking into account the achievements of modern machine-building production. The peculiarity of the project is the use of CNC machines, and semi-automatic machines.

Summary

One of the main conditions for the development of the country's economy in the modern period is the constant increase in the competitiveness of products in the domestic and world markets, which can be ensured by its high quality. The basis of the national economy, which determines its technological level, is mechanical engineering.

Modern mechanical engineering is characterized by a continuously increasing share of products produced in small series or in single copies. Currently, 80% of the total volume of engineering products is accounted for by small and medium-sized production.

Created machines characterized by increase of their productivity, speed, specific power and reliability, with reduction of weight and overall parameters. This entails the use of new high-strength, special properties structural materials, which in most cases are difficult to process. However, technological progress is determined not only by the improvement of machine structures, but also by the continuous improvement of their production technology. The development of manufacturing processes for parts is one of the critical stages of production preparation. Processes shall ensure high quality of products in accordance with the operating specifications at minimum cost and time.

The prevailing trend in the development of mechanical engineering technology is the introduction of low-waste and low-operation technology for the manufacture of parts, the use of accurate blanks, which contributes to material saving, reduced mechanical processing, reduced production cycle of parts and reduced cost of production as a whole.

This course work summarizes and systematizes the provisions set forth in the discipline "Engineering Technology." Performing the course work allows you to acquire skills in using the knowledge gained during the study of this discipline to solve specific practical tasks, the performance of which is associated with the activity of a technologist in production conditions.