3. Determination of the processing data of punching die profile
After the drawing process and the trimming and punching die surface processing data before the flanging finishing process, the final drawing of the finalized drawing must be ta…
Because ΔB=0, the positioning error is ΔD=Δy=0.065 mm/100 mm; while the pattern requires a radius of 22.5mm, the coordinate tolerance of the hole is ±0.06mm. Therefore, the influence of the corner error on the machining accuracy of the workpiece is in the pattern. Within the…
(1) Establishing a development application organization;
(2) Learning and training of system development knowledge;
(3) Application for project approval;
(4) preliminary investigation;
(5) preliminary analysis of the current system;
(6) Planning of the new system; <…
The definition and specific varieties of difficult-to-machine materials vary from generation to generation and from professional fields. For example, superalloys, titanium alloys and composite materials containing carbon fibers commonly used in the aerospace industry are difficult materials…
Figure 5 angle template
Figure 6 arc line template…
In the process of stamping process design of automobile high-strength board, the scientific supplement modeling and the variable-draw drawing rib design are scientifically reduced, the number of mold debugging is reduced, the mold manufacturing cycle and manufacturing cost are shortened, an…
3. Grinding principle
First, the grinding machine is charged with a compressed gas of not less than 0.6 MPa. At this time, the resistance of the spindle is very small to ensure the spindle precision and the spindle movement are stable. Install a suitable 5C collet to c…
4. Status of dry cutting technology
The scientific definition of dry cutting was officially established in 1995. At the 1997 International Conference on Production Engineering (CI RP), Professor F. Klocke of the Aachen University of Technology in Germany g…