LT3121B - Method for making point - Google Patents

Abstract

Invention relates to metal treatment technology and may be used to manufacture an upper ball-finger for a VAZ 01-07 car and for other parts with points. The invention achieves an improvement of technological characteristics. The method of formation of the point includes incandescence of a blank (5) and pressing. A formed part of the blank (5) after installing it into a formation device between a puncheon (2) and a matrix (1) is incandesced by letting electrical power through it with a voltage of 6.3 up to 9,000 amps in strength. A formed part of the blank (5) is heated for 1 minute up to 1,100 degrees Celsius and afterwards the point is formed by a half-spherical shaped puncheon and matrix of the same shape.

Description

The invention relates to a metalworking technology, namely stamping ', and can be' used to manufacture the VAZ 01-07 upper ball finger.

Known for hot and semi-hot stamping, · with a heat exchanger pouch, located in the top movable container and annular void for lubricant-coolant. The pouch is made with a bimetallic thermal conductive layer on its lateral surface, in the area where it comes into contact with the lubricant-coolant in the annular groove of the container. This layer has a 0.7t0.8 poisson lateral thermal gap width and is made up of a nickel layer? and copper layer. The thickness of the nickel sublayer is 0.10-0.15 total thickness (see SU Authentication No. 156 205, TPK B21J13 / 02, 1990) ./

The disadvantage of this tool is its inefficient stamping due to its complex construction and / or difficult use, due to the need for / preheating the workpiece.

Known and volumetric stamping also includes preheating of the workpiece and stamping with a punch / punch plate and a needle plate with forming mat, trimmer / knot, and remover. The matrix is embedded in this axial motion capability. in relation to the poison. The matrix drive consists of a matrix, a traverse with respect to the mounting plate, with sloping side surfaces and interacting clamps. Each clamp is pivotally connected by these two "stacked levers" (see SU Auth. No. 1538976, TPK B21J13 / 02, publ. 1990), the disadvantage of the other design being insufficiently good performance, 7-? because not enough. sparingly 'metal used / separate equipment required for workpiece heat-up // · more complex hot workpiece -placement

'././press.'·'/''?/

The object of the invention is to improve the technological properties of the imaging technology by simplifying the technology and saving the metal. .

^10th

This object is achieved in a method of forming a workpiece, comprising: heating the workpiece; fo.rma.IMO '/' to ^the device '? allowing? through electric current; p or formative volume for 1 minute. allowed 6.3 volts /-./ir./z/iki?/ '9000? 7 amps? ·. current is heated to 1100 ° C in the forming part of the workpiece, and the nozzle is then formed into a semi-phosphor / form / pouch, and the same matrix.

'WA / ..? Al' ^: - '/.////?/'? -?.? /:.? '/;''?' A? A- / 7'J './'/'·; /? '' · 7 /.,., A.'7 ''·;'/...; ..? Ν <· .7 ^: / 7 - -1''z//' // The essence of the invention is explained in the drawing , where / .Fig ... Fig. 1 illustrates a workpiece insert for forming, and Figs. 2 final stage of formation. Ι //? / '· /. '/ .. / / A

Forming used self-made 40 tons 'g-' press. The press has an upper plate 1 with a balancing punch 2 and a lower plate 3 with another. 4. The Poisson 2 and the matrix 4 have holes 6.7 corresponding to the cross-section of the blank 5 at their bottoms. The workpiece 5 'in cross-section corresponds to the rod-shaped straight body 8 of the future product (VAZ 01-07 car's upper ball finger), on which the ball tip is formed

9. The press has 6.3 volts and up to 9000 amps of electrical wires 10 and 11, which are connected to the ends of the workpiece 5.

I

The proposed approach is implemented as follows:

The metal rod-shaped workpiece 5 is inserted into the holes 6,7 of the punch 2 and the matrix 4. The part 5 for workpiece straight (VAZ 01-07 upper ball finger7 - catalog index D-210) is left outside the forming zone between the die 4 and / or the bottom plate 3. The part 8 for the ball tip 9 is placed between poolson 2 and matrices +. End-piece the workpiece into the panels 1

-TT and 3. Wires 10 and 11 and 1 minute are applied to the nozzle portion 9 of the workpiece portion 5 at holes 6 and 7 of the punch 2 and the matrix 4 through the forming portion 5 of the workpiece to produce 6.3 volts and 9000 amps of current. workpiece

7-5: The part is heated to 1100 ^G C. The press / blower 2 is then pressed against the matrix 4 by their contact, and between them the internal surfaces with the foam nozzle 9 7- Except. the pouch 2 from the matrix 4, the article with the formed 'i // ·· ../'-../'/, the cap 9 is removed and a new workpiece 5 is inserted into the pouch 2 and the matrix 4.

Compared to the prototype, the technological features are improved by the fact that the cold workpiece insertion is simpler: it requires neither 'special pre-heating means nor means for inserting the hot product into the press. With a current of 6.3 volts and up to 9000 amps, only the workpiece is heated to the required temperature of 11007 through the workpiece. This saves both energy and metal by preventing deformation and associated metal removal from the workpiece. Low voltage (6.3 volts) and up to 9000 amps allow simple,

.. .. '' '4 do not require special protection to do the forging and forming work.

Claims (3)

DEFINITION OF INVENTION A method of forming a nozzle comprising a workpiece ... annealing and stamping, b'e s i s k i r i on 5 by heating the forming part by inserting it in. the forming unit and. by passing an electric current through it and then forming a nozzle. . 2. A method of forming a nozzle, characterized in that, for 1 minute, At 6.3 volts and up to 9000 amps, the workpiece is heated to 1100 ° C, and the nozzle is then molded in a balanced pouch and the same matrix. '/ L' '