47results about How to "Improve flanging effect" patented technology

The present invention provides a 6xxx series aluminum alloy sheet with high flanging performance. The aluminum alloy sheet includes the following components in terms of mass percentage: Mg: 0.1% to 1.4%; Cu: ≤ 0.35%; Mn: ≤ 0.3 %; Cr: ≤ 0.3%; Si: 0.3% to 1.8%; Fe: ≤ 0.45%, and the balance of Al, the average grain size of the finished aluminum alloy sheet along the rolling direction is less than 30 μm, and the diameter is greater than or equal to 2 μm The proportion of the number of equivalent circles of the second phase is less than 10%. The technical solution provided by the present invention effectively regulates the distribution of the second phase and the grain size in the aluminum alloy, greatly improves the flanging performance of the plate, and the obtained plate can be widely used in automobiles. 6xxx Aluminium Alloy Covers Outer Panels.

The present invention relates to a cold rolled steel strip for an automobile seat, which comprises the following components in percentage by mass: 0.17 to 0.23 percent of C, below 0.01 percent of P, below 0.01 percent of S, 0.15 to 0.35 percent of Si, 0.60 to 0.90 percent of Mn, 0.15 to 0.35 percent of Mo, 0.40 to 0.65 percent of Cr, 0.40 to 0.70 percent of Ni, and the balance of Fe. The yield strength 6s of the ultrahigh strength cold rolled steel strip is 300 to 400MPa, the tensile strength 6b is 350 to 550MPa, the elongation rate delta is more than or equal to 30 percent, and the hardness is 75 to 85; and the ultrahigh strength cold rolled steel strip has high flanging performance.

The invention discloses a method for improving the flanging performance of an aluminum alloy plate. The method comprises the following steps: (1) performing homogenization heat treatment on an aluminum alloy ingot, and performing air cooling and / or furnace cooling on the billet after the homogenization treatment; (2) performing heat treatment on the billet before hot rolling: the holding temperature is 520℃~560℃, the heating rate is 40℃ / h~120℃ / h, and the holding time is 1.5h~5h; (3) Then hot-roll and / or cold-roll the heated billet to obtain cold-rolled coil ; (4) On-line solution treatment and pre-aging treatment of the coil to obtain the strip in the T4P state. The present invention regulates the Mg in the structure through the reasonable matching of the uniform cooling process and the heating process before hot rolling. 2 The morphology, quantity and size of the Si phase improve the flanging performance of the T4P state plate, and the flanging performance of the alloy plate prepared by this method meets the requirements of the automobile factory.

The invention belongs to a device of a flange production process of a cylindrical (shell) branch hole of aluminum and steel materials and particularly relates to a flange mould system of a shell branch hole of a high-voltage switch. The flange mould system is characterized in that: a mould handle is connected with a convex mould through a connecting piece; external splines are respectively machined at the top end and the bottom end of a pull rod; the top end of the pull rod is inserted into a spline groove in the convex mould and then rotates for 45 degrees to be clamped with the convex mould; the bottom part of the pull rod is inserted into a spline groove in an oil cylinder piston and then rotates for 45 degrees to be clamped with a main oil cylinder; a concave mould is clamped with a concave mould seat through clamping grooves which are in a clearance fit and two ends of the concave mould are fixed by a right baffling block and a right baffling block; the concave mould seat is fixed on a cross-shaped positioning key on a main worktable; a shell is placed on the concave mould to be subjected to alignment; and the convex mould is placed on an inserting head at the front end of a mechanical movable arm. The flange mould system has the advantages of reasonable and standard design, simplicity in machining and reliability in use; and the undesirable effects that a shell flange is easy to crack, a vertical edge is not straight, and the like are solved.

The invention discloses a progressive die flanged by a flanging knife and a metal sheet flanging processing method and aims to solve the problems of complex structure and large volume of an existing device. A flanging station is formed on the progressive die flanged by the flanging knife; a lower die, an upper die and the flanging knife are arranged on the flanging station; and an angle of a processing surface of the flanging knife is fitted with the shape of a workpiece. According to the metal sheet flanging processing method, a flanging part of the workpiece is fixed by the flanging knife and the lower die and then is flanged under the action of the pressure of the upper die. According to the progressive die flanged by the flanging knife, the structure and the using method are simplified, and the occupied area is reduced. According to the metal sheet flanging processing method, the flanging effect is better, the quality of a product is higher, and the technical flow is simplified. Furthermore, the efficiency is improved, the cost is reduced, and the metal sheet flanging processing method is suitable for the flanging technologies for various metal sheets.

The invention discloses a flanging device for an automobile aluminum heat protection shield. The flanging device for the automobile aluminum heat protection shield comprises a base, a vertical stamping head, a first steam cylinder, a horizontal stamping head, and a second steam cylinder, wherein the vertical stamping head is arranged on the base and can move vertically, the first steam cylinder is connected with the vertical stamping head, the horizontal stamping head is arranged on the upper right of the base and can move horizontally, the second steam cylinder is connected with the horizontal stamping head, a step is arranged on the base, and a wedged protrusion is arranged at the lower right end of the vertical stamping head. Aluminum sheet material to be flanged is placed on the base, the portion, to be flanged, of the aluminum sheet material is placed on the step of the base, the horizontal distance between the right end of the bottom of the vertical stamping head and the left end of the top of the step is equal to the thickness of the aluminum sheet material, and the height of the bottom of the horizontal stamping head is accordant with the top of the step. Compared with existing steel mould stamping flanging technology, the flanging device is simple to operate, short in consumed time and few in processes, is self-powered without using pressure machine tools, and is capable of reducing producing cost for the flanging cost of the aluminum sheet material and improving producing efficiency.

The invention discloses a device and method for driving plate hole flanging forming through multidirectional magnetic field force. The device comprises a blank holder (1) and a concave die (2). The blank holder (1) is arranged above the concave die (2) and used for pressing a plate (3) to be subjected to hole flanging forming between the blank holder (1) and the concave die (2). A concave die cavity (4) is formed in the concave die (2). An upper coil groove and a lower coil groove are correspondingly formed in the blank holder (1) and the concave die (2). Upper end hole shrinkage coils (5) are embedded in the upper coil groove. Lower end hole shrinkage coils (6) are embedded in the lower coil groove. Axial deep drawing coils (7) are arranged above the edge of a pre-formed hole of the plate (3). An inner bulging coil (8) is arranged in the pre-formed hole of the plate (3). According to the device and method, cracks can be prevented from being generated to a round hole flanging deformation area during hole flanging forming, the product quality is good, and the forming process is simple.