What Is Metal Milling?

Metal cutting is a material removal and forming method in the metal forming process, which still occupies a large proportion in today's machinery manufacturing. The metal cutting process is a process in which the workpiece and the tool interact. The cutter removes excess metal from the workpiece to be processed, and under the premise of controlling productivity and cost, the workpiece can obtain geometric accuracy, dimensional accuracy and surface quality that meet the design and process requirements. In order to achieve this process, there must be a relative movement between the workpiece and the tool, that is, a cutting movement, which is provided by a metal cutting machine. Machine tools, fixtures, tools and workpieces form a machining process system. Various phenomena and laws of the metal cutting process will be studied in the state of motion of this system. ^[1]

Metal cutting is used

Research on the principles of metal cutting began in the mid-19th century. In 1851, the Frenchman M. Kokkila first measured the torque of a drill when cutting cast iron and other materials, and listed the work required to remove a unit volume of material. The influence of force In 1870, the Russians .. Jimei first explained the formation of chips, and put forward the idea that the metal material was not only squeezed but also sheared in front of the tool. In 1896, the Russians ...

When designing and using machine tools and tools, you need to apply data on cutting forces, cutting temperatures, and cutting performance in cutting principles. For example, when determining the basic parameters such as the maximum torque and rigidity of the machine tool spindle, cutting force data should be applied; when developing new materials with high cutting performance, the law of tool wear and damage needs to be grasped; and the thermal deformation In the impact of machining accuracy, we must study the cutting temperature and its distribution; on automatic production lines and digitally controlled machine tools, in order to make the machine work normally and stably, and even to achieve unmanned operation, it is necessary to apply the chip formation and control Research results, and automatic compensation of tool wear and

First, the operator must pass the examination and hold the "equipment operation certificate" of the machine before operating the machine.

2. Do it carefully before work:

1. Read the shift record carefully to understand the operation status and problems of the previous machine.

2. Check the machine tool, workbench, guide rails and main sliding surfaces. If there are obstacles, tools, iron filings, impurities, etc., they must be cleaned, wiped and oiled.

3. Check the workbench, guide rails and main sliding surfaces for new tension, grinding, and bumps. If necessary, notify the team leader or the equipment staff to review and make records.

4. Check that the safety protection, braking (stop), limit and reversing devices are complete.

5, check mechanical, hydraulic, pneumatic and other operating handles, cutting doors, switches, etc. should be in a non-working position.

6. Check that each tool post should be in a non-working position.

7, check the electrical distribution box should be closed securely, good electrical grounding.

8. Check that the amount of oil in the oil storage part of the lubrication system should meet the requirements and be well closed. The oil gauge, oil window, oil cup, grease nipple, oil line, linoleum, oil pipe and oil separator should be complete and installed correctly. press

Title: Metal Cutting

Author: Chen Qiang

Price: 26.00

isbn: 978-7-111-51200-4

Publication time: 2015-12-20

Introduction to metal cutting content

According to the Ministry of Education's "Professional Teaching Standards for Higher Vocational Schools (Manufacturing Major)" and "Basic Requirements for Teaching of Metal Cutting in Higher Vocational Education", based on the needs of the traditional "Metal Cutting Principles and Cutting Tools" curriculum reform, the purpose is to cultivate students' careers. Competence and innovative thinking, combined with the results of the reform of "Metal Cutting Principles and Cutting Tools" curriculum, based on the summary of the teaching experience of higher vocational education. The book is based on the types of work required for mechanical manufacturing product processing, with typical parts as carriers, and has four learning scenarios. The main contents include turning of shaft parts; milling of plane and box parts; grinding of parts; planing, drilling and gear processing. This book can be used as a vocational teaching material for majors in mechanical manufacturing and automation, NC machining technology, mold design and manufacturing, etc., and can also be used as an educational material for adult education and continuing education. reference.

Table of Contents for Metal Cutting

Contents Compilation Introduction Foreword Learning Scenario 1 Turning of Axis Parts 1
Task 11 Ladder Axis Turning 2
Task 12 Taper Turning of Tailstock 17
Task 13 Thread Turning 31
Learning Scenario 2 Milling of Planar and Box Parts 43
Task 21 Step Milling 44
Task 22 Milling of Cabinet Parts 58
Learning Scenario 3 Grinding of Parts 72
Task 31 Grinding of Stem Outer Circle 72
Task 32 Surface Grinding 99
Learning scenario 4 planing, drilling and gear processing 113
Task 41Planing and cutting of parts 114
Task 42Cover drilling 130
Task 43 Broaching 148
Task 44 Gear Processing 164
References 181