(1) General understanding - understand the name, material, proportion, etc. of the part from the title bar. The name is used to get an idea of the purpose of the part; from the material, the approximate manufacturing method is known; from the pattern ratio, the size of the part can be estimated.
(2) Analyze the view, imagine the shape of the part structure - first find the main view, then analyze the view of the part, and find out their view name, cut position, projection relationship and what it expresses. Analyze the relative position of the structure by means of shape analysis and line surface analysis, and then connect with each other to think of the overall structural shape of the part.
(3) Analyze the size - Analyze the overall size, shape size, positioning size, size reference, and main dimensions of the part to determine the size of each part of the part.
(4) Analytical technical requirements - Analyze the dimensional requirements of parts and geometrical tolerances, surface structures and other technical requirements and quality indicators.
(5) Induction - In summary, the various aspects of the obtained data are summarized and analyzed, and a complete understanding of the whole part of the part can be obtained, and the overall shape of the part is formed in the mind.
