Six-point positioning rules: the freedom of the parts in space is restricted by six points, so that the space position of the parts can be determined completely. The factors that influence the bending forming are: bending force, elastic phenomenon, minimum bending radius, section shape. Q: When the rolling machine rolls, it is usually done after heating, right? A: It is both the common line and the dividing line on the two surfaces; it’s always closed in space. A: It mainly shows a contraction in both longitudinal and transverse directions. This deviation is controlled within a certain range, and the error is called lofting allowable error. According to the face shape, steel can be divided into: plate, tube, profile, wire rod. The three elements of assembly are: Position, support and clamping. Mechanical Engineer Skills & Definition. Q: What are the advantages of the stamping process? Cloud Computing Project Ideas for students, 40 Important PLC Projects for Engineering Students, How to enable developer options in MIUI 8 & MIUI 9. Blanking: a stamping method used to separate sheet material by the press. Steel structure: multiple parts can be welded, riveted or bolted together. Many mechanical engineers also have a master’s degree or a higher degree (such as a Ph.D.) in mechanical engineering. Roll edge: to increase the rigidity and strength of the edge of the workpiece by curling the edge of the workpiece. Q: What is the effect of steel heating on the bending process of steel? The distance between hot spots should be uniform. A: In steel structure, the thin plate is often assembled or welded together with various frames, which is limited by the frame. Line heat forming is only suitable for parts with small curvature, and more is combined with rolling pressure to process parts with double curved complex shapes. The expansion condition of the parallel line method is: the elements on the surface are parallel to each other and reflect the actual length on the projection surface. The deformation of flat steel is: bending, distortion, bending and twisting deformation. The production of sample is generally adopted: thin sheet iron with thickness 0.5- 2mm. The hammer used by riveters is: hand hammer, sledgehammer, forming hammer. The three elements of the assembly are: positioning, supporting, clamping. Cold correction: correction at normal temperature is called coldness correction. The spherical method is only suitable for the rotating body and the component that intersects the axis. Q: The pipe bender is divided into two types: mechanical transmission and. The structure lofting includes: determine the location and connection form of each department; make necessary changes according to actual production and processing capacity; calculate or measure the actual length of part material and shape of plane parts; design the mold or mold frame. In addition, mechanical engineers should have soft skills, such as strong analytical thinking and communication skills. Q: What is the relationship between rivet length and riveting quality? When the steel plate is thin and the weld is in the middle of the steel plate, wave deformation often occurs after welding. Grinding: the grinding wheel is used to process the workpiece surface. Cold riveting: rivet in normal temperature condition is called cold riveting. Views are divided into: basic view, local view, oblique view, rotation view. In hot riveting, the diameter of the rivet hole should be slightly larger than the diameter of the rivet rod due to thermal expansion and thickening. 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