Mechanical engineer's most complete knowledge system diagram, vomiting blood after reading it!

  The following pictures tell you how difficult it is to be a qualified mechanical engineer! Maybe you didn't exactly mention a certain job in the picture in your work, but you will take into account or use the knowledge points in the picture more or less when designing an industrial equipment scheme or doing an applied technology research.

  After refining the above picture:

  Look at the following. What can't you do?

  I. Mathematics/Applied Science

  1. Mathematics

  Analytic geometry


  linear algebra

  Probability and Statistics

  2. Physics

  motion law

  mechanical movement



  3. Engineering mechanics


  Kinematics and dynamics

  Strength and stiffness

  4. Electrician and Electronic Technology

  Dc circuit

  Alternating current circuit


  Fundamentals of digital circuits

  Second, the material

  1. Material properties

  Conventional characteristics

  test method

  Design basis

  2. Metal materials

  material characteristics

  crystalline structure

  test method

  Material selection

  3. Non-metallic materials

  engineering plastics

  pottery and porcelain

  optical fibre

  Forming and manufacturing method

  4. Heat treatment

  Heat treatment method and technology

  Detection and test methods

  app; application

  Third, product design

  1. Engineering drawing

  Machinery (parts, systems)

  Hydraulic and pneumatic


  logic diagram

  Schematic diagram

  Welding symbol

  Size marking

  Form and position error mark

  Surface roughness marking

  2. Fundamentals of product design

  Mechanical principle

  machine part

  Hydraulic pneumatic and sealing

  Workmanship, Clamping, Quantity and Mold Design

  common difference and cooperation

  Dimension chain application

  3. Design support technology

  Friction, Wear and Lubrication

  Industrial design (styling design)

  Vibration and noise

  Anticorrosion and surface treatment

  Finite element calculation

  Concurrent engineering application

  Rapid prototyping (RPM)

  4. Computer aided design

  Mechanical two-dimensional CAD

  Mechanical three-dimensional CAD

  Electronic circuit CAD

  Fourth, the manufacturing process

  1. Process formulation

  machine work


  electric processing

  surface working

  press working


  powder metallurgy

  2. Process scheme design

  Product process analysis

  Graphic design

  Production line design

  Process design of typical parts

  Comparison between discrete and continuous manufacturing

  Comparison between flexible and rigid automatic systems

  3. Process equipment

  Process equipment planning


  machine work

  surface working


  press working


  4. Standard equipment design

  Function determination

  Mechanical structure

  Material selection

  motor control

  V. Management/Economy

  Step 1 be safe

  Equipment plan

  Safe operation of equipment

  Product liability

  Environmental protection (waste gas, waste residue and waste water discharge treatment)

  Operation and storage of dangerous goods

  Fireproof, antivirus, explosion-proof, antistatic and noise-proof.

  Safety norms, standards and laws

  2. Engineering ethics regulations

  tariff law

  accounting system



  patent law

  trademark act

  law of contract

  Copyright Law

  company law

  modern corporate system

  3. Engineering economy

  Price basis

  Production license

  value analysis

  Value engineering

  4. Industrial engineering


  human factors engineering

  Workflow analysis and improvement



  Group technology

  Equipment resource allocation

  Inventory planning and control

  worksite management

  Fixed position management

  5s activity

  VI. Quality Control/Quality Assurance

  1. Quality assurance

  ?TQM concept

  quality assurance (control) system



  2. Process control design

  Control chart

  Defect analysis

  probability analysis

  Qc activity

  3. Metrology/measurement, physical and chemical detection



  Coordinate measurement

  Sensing technology and non-electric quantity measurement

  Gear and thread detection

  Automatic measuring system

  Online measurement

  chemical analysis


  Flaw detection and nondestructive testing

  VII. Computer Application/Automatic Control

  1. Computer application



  Transfer graphics

  Machining program



  Mechanical manufacturing network

  app; application



  basic concept


  app; application



  basic concept

  Basic concepts of ?CIMS

  3.CNC/NC program

  Common program format

  Common standard code

  Mechanical linkage shaft

  Convert media

  the data shows that ...

  Point-to-point operation

  Isogram operation


  4. Automated warehouse

  bar code

  automatic recognition

  voice recognition

  Storage and retrieval system

  5. Robot/automation system



  control system theory

  open loop

  closed loop

  Mechanical control system

  Electromagnetic control system

  electronic control system

  hydraulic control system

  pneumatic control system

  Eight, advanced manufacturing technology (general understanding)

  Micro robot

  Intelligent control technology

  Nanomaterials and Nanoprocessing Technology

  Virtual axis machine tool

  reliability design

  Green product design

  Green process design

  High energy beam processing technology

  Nine, management innovation/marketing (general understanding)


  System reengineering (BPR)

  ?WTO, machinery import and export business

  Agile manufacturing (AM)

  Lean production (LP)

  Virtual enterprise


  Understand the knowledge system, and then cooperate with the following classification of mechanical engineers to see where you are-

  First of all, don't think that machinery is only for structure, let alone that structure is only using PROE, solidworks or other software ...

  In fact, those who engage in mechanical institutions have an innate advantage, that is, all products are based on structure, and it is possible for you to develop anywhere. Doing structure can make you have a more intuitive understanding of products and make you more rigorous and practical. On the other hand, it is a long and painful exercise process to engage in structure, but once you practice your skills, you are not afraid of getting old, and even the older you get, the more popular you are.

  What are the stages of advanced mechanical engineer?

  Rookie level

  1. Rookie Level 1

  Can use AUTOCAD to draw some simple two-dimensional drawings, according to which you can imagine the three-dimensional shape of the product.

  2. Rookie Level 2

  You can see the tolerance, materials, surface treatment, technical requirements and other information on your two-dimensional drawing. And you marked the information yourself, and you know what they mean.

  3. rookie level 3

  You can draw two-dimensional drawings, and the drawings you draw really seem to be able to be processed into real objects, although sometimes you make some mistakes, for example, even Germans can't make them with high accuracy, not to mention Master Zhang in your workshop. At the request of the leader, you can use some three-dimensional software to draw an effect diagram, although it is of no practical value, at least it is very fulfilling.

  Entry level

  1. Entry Level 1

  You already know how your products are processed, and you know the significance of each process. If improvement is needed, you can generally judge where to start, and you can guess a thing or two about the possible impact after improvement.

  At this time, you have deeply realized that two-dimensional engineering drawings are far more meaningful than three-dimensional models. You begin to despise so-called mechanical engineers who can only build some 3D models with 3D software.

  2. Entry Level 2

  You begin to understand what enterprise informatization means. Knowing that three-dimensional design is actually very useful, and you can integrate the process information you love into three-dimensional design. At this time, you should have been able to skillfully design some commonly used parts by using 3D software, and generate 2D engineering drawings that can guide production, or directly take them to CNC equipment for processing.

  Expert level

  1. Expert Level 1

  You have been able to use related design software to manage production, including drawing design and BOM); management. You are already very clear about the production process, and you can identify key technical points and focus on solving them; Even have begun to try to use finite element analysis for strength, fatigue and other analysis, and can easily write an eloquent design document, it is not a problem to fool the novice. And if you haven't become a design director, you may need to work harder in interpersonal relationships.

  2. Expert Level 2

  You have vaguely felt that it is a waste of your time to simply and repeatedly design drawings, because you already know these things by heart. You'd like to spend more time on improving the competitiveness of the whole product, such as how to reduce the cost, how to improve the technological process and how to improve the design efficiency.

  You can see that there are still some deficiencies in the structure, materials and functions of your products. You can realize that this is not something you can change alone. You start to make systematic consideration by using the surrounding technical resources, make plans to improve the competitiveness of your products, and list the technical nodes to break through one by one.

  3. Expert level 3

  By this time, you have gone beyond the scope of "structural design". You should know very well that your product has no potential to be tapped in structure. But around the structure, you can pay attention to the various characteristics of the whole product, and you can flexibly penetrate the application in a series of fields such as EMC, heat dissipation, noise, safety, environment, ergonomics, DFX(DFM manufacturability, DFI installability, DFA assemblability, DFT testability), and so on, and comprehensively enhance the core competitiveness of the product.

  Master class

  Being responsible for the core competitiveness of the whole product is your basic work. At the same time, you need to know the relevant domestic and foreign manufacturing standards and norms, know what kind of threshold your products will face when they are sold in Europe or North America, what kind of certification you need to provide, and how you can upgrade your products to meet these needs.

  You must also know your competitors' products like the back of your hand, and be able to point out the advantages of each other's short boards and your own products. You know the industry trends, you can predict the development trend of this product in the next five or even ten years, and make a long-term development strategy to guide your staff to accumulate relevant technology.