TR201801836A2 - AN STRENGTH OF SWING ARM AND PRODUCTION METHOD - Google Patents

Abstract

The invention relates to the production method of the swing arm (10) used in the suspension systems of the vehicles, to obtain the release sheet (20) by cutting the sheet metal from the roll band, and to the crushed sheet (40) comprising the crushed zone (40) formed by the sheet rolling method. (30) comprises forming the swing arm (10) by shaping the crushed sheet metal (30).

Description

TECHNICAL FIELD The invention is a swing arm with increased strength used in suspension systems of vehicles. and it relates to the production method by which the swing arm is obtained.

The invention has been created by crushing the mold in order to increase the strength. It relates to a swing arm containing sections and the associated production method.

PRIOR ART One of the structural elements that make up the vehicles is the swing arm. swing arm two suspension connected to the vehicle chassis at one point and to the wheel at one point is one of its parts. The swing arm moves in harmony with the wheels of the vehicles. is doing. Therefore, during the movement of vehicles, depending on the road conditions, forces are absorbed on the swing arm. According to the vehicle type of the swing arm In existing systems, forging and casting with swing arms made of double and single layer sheet metal swing arms are used. Today, with the importance of lightness in the vehicle, The use of high-strength sheets is increasing, and the production of high-strength sheets single floor swing arms are widely used. Increasing material strength brings with it some problems. At the beginning of these problems; your product is cold The shaping ability comes down. Another problem is; material costs This is due to the increase in product costs.

Local reinforcement in the swing arm part to solve these problems in existing techniques techniques are recommended. The most important of these are local heat treatment solutions. in this solution The negative effect is that the process time is increased due to laser or induction heat treatment. Other A negative effect is that systems suitable for heat treatment must be used in order to heat treat the material. is required to be used.

The known developments in the current art related to the subject are given below.

The patent number TR201516005 covers fatigue cracks that may occur in the weld areas. It is related to a swing arm production method that will prevent Although it is based on the use of an additional welding process is needed.

The patent with the publication number TR201310157 can be processed regionally and in the required regions. It is related to a swing arm production method with increased strength and higher Although it is based on the use of high-strength sheet metal, no additional heat treatment process is needed. is heard. Although it is based on increasing the resistance of the swing arm against buckling, the reinforcement plate and welding is needed. Joining of locally pressed monolithic parts on the structure by welding method It is related to.

As a result, the above-mentioned problems which cannot be solved in the light of the current technical made it necessary to make an innovation in the field.

BRIEF DESCRIPTION OF THE INVENTION The present invention is intended to eliminate the above mentioned disadvantages and to introduce new technologies into the relevant technical field. used in suspension systems of vehicles to bring advantages, production of a swing arm containing sections formed by the crushing process in the mold to increase relates to method.

The main object of the invention is to increase the strength of the swing arm.

It is another object of the invention to create a durable swing without the need for additional materials or processes. to ensure the production of the arm.

Another object of the invention is to use cold crushing method in the production of swing arm. With the formation of dislocations thanks to the deformation process, the strength of the material is increased. is to increase it. During the cold deformation process, new dislocations dogma contributes to increase the strength of the material. Increasing density stiffening as a result of the interaction of dislocations with each other and with other obstacles. and accordingly, an increase in strength is provided.

All the above-mentioned purposes that will emerge from the detailed description below. The present invention is a system used in suspension systems of vehicles. swing arm 'manufacturing method, feature; - Obtaining the unfolding sheet by cutting the sheet roll from the tape, o the crushed area on the sheet metal formed by sheet crushing method obtaining crushed unfolding sheet containing o The process of obtaining the swing arm by shaping the crushed sheet metal contains the names.

The embodiment of the present invention and the best use of its advantages with additional elements In order to be understood, it should be evaluated together with the figures explained below.

BRIEF DESCRIPTION OF THE FIGURES Figure 1. The subject of the invention is the general view of the swing arm containing the crushed area.

Figure 2. The subject of the invention is the general view of the swing arm containing the crushed area.

Figure 3. Detail view of the crushed areas in the crushed area.

Figure 4. Detail view of the crushed areas in the crushed area.

Figure 5. The view of the opening sheet.

Figure 6. View of the crushed metal sheet.

REFERENCE N MARKS . swing arm . opening sheet . crushed sheet metal 40. Crushed area 50. Crushed region 52. ledge D. Crush range DETAILED DESCRIPTION OF THE INVENTION In this detailed description, the innovation that is the subject of the invention is only intended for a better understanding of the subject. It is explained with examples that will not have any limiting effect.

The invention is based on the production method of the swing arm (10) used in the suspension systems of vehicles. is relevant. The production method of said swing arm (10); Obtaining the unfolding sheet (20) by cutting the sheet from the roll band, o The crushed area formed by the sheet crushing method on the opening sheet (20) Obtaining crushed unfolding sheet (30) containing (40), o Obtaining the swing arm (10) by shaping the crushed opening sheet (30) In Figures 1 and 22, the subject of the invention is the swivel arm (10) containing the crushed region (40). general views are given.

After the sheet is cut from the roll band, a cut close to the opening shape of the swing arm (10) is made on the sheet. is being done. The sheet cut in this way is called the opening sheet (20). Opening sheet (20), before it is placed in the mold, it is unshaped and flat. at the press The unfolding sheet (20) is formed with the unfolding die. In Figure 5, the unfolding sheet (20) view is given.

Crushed unfolding sheet (30) is obtained by crushing in the mold on the unfolding sheet (20). is being done. That is, the crushed deflection sheet (30) is formed by the crushing of the deflection sheet (20) in the mold. brought sheet. The unfolding sheet (20) is crushed/cold forming. With the crushing method Strength of the unfolding sheet (20) in certain regions by cold forming is being increased. Strength-enhanced regions are crushed regions (40). in figure 6 The view of crushed unfolding sheet (30) is given.

Crushed area (40), preferably 5x5 square with 5 mm squashing gaps (d) It includes crushed regions (50) consisting of recesses in the form of In the crushed area (40), the ground between the crushed regions (50) is in the form of protrusion (52). Figures 3 and 4, Detail views of the crushed regions (50) in the crushed region (40) are given.

The crushing depth (crushed zone depth (50)) is 2/3 of the thickness of the drilling sheet (20).

The crushing range (d) consists of the distance between the two crushed regions (50). squashed areas (50) preferably has a square shaped geometric form. The crushing gap (d) is equal to each other. or different, whether the crushed region (50) is in geometric or non-geometric form possible. Said crushed area (40) shall contain a 5 mm crushing gap (d) Crushed in a square form measuring 5x5 mm side by side and/or back to back regions (50).

Swing arm (10) is obtained by shaping the crushed unfolding sheet (30). Clear The strength-enhanced sheet (30) is in the form mold of the unfolding sheet (20) in the press. is being shaped.

The subject of the invention is the swing arm (10) after crushing in the opening mold of the sheet material. It is obtained by shaping in the forming mold. First in press opening cutting die As a result, the opening sheet (20) is printed (cut out), the next process in the same mold crushing process is carried out. The die used is a progressive die. Forming The sheet metal (30), whose strength has been increased by crushing in the mold, is bent and shaped.

Thanks to the inventive production method, without the need for an additional material or process. solution is provided within the system itself. During forming on the opening sheet (20) additional reinforcing forms are added and the production is made with this unfolding sheet (20). is carried out. Thus, those who need strength on the swing arm (10) The sections become durable thanks to these pre-given forms.

Cold deformation process is done by crushing. Dislocations with cold deformation The strength values of the material are increased by creating dislocations with each other and the interaction of dislocations with various obstacles that make their movement difficult.

It also contributes to the emergence of new dislocations during cold deformation.

Dislocation density in the inner structure of the plastic deformation sheet (20) plastic increases after deformation. The need for dislocations with increasing density hardening as a result of their interaction with each other and with other obstacles and as well as an increase in endurance.

Claims (8)

REQUESTS 1. It is the production method of the swing arm (10) used in the suspension systems of the vehicles. Its feature is; . Obtaining the unfolding sheet (20) by cutting the sheet roll from the tape, . It includes the process steps of obtaining the crushed unfolding sheet (30) containing the crushed area (40) formed on the deflection sheet (20) by sheet crushing method, shaping that crushed deformation sheet (30) and obtaining the swing arm (10). 2. It is a production method according to claim 1 and its feature is; It includes the process of creating a crushed region (40) containing crushed regions (50) with geometrical form. 3. It is a production method according to claim 1, and its feature is; It includes the process step of forming the crushed region (40) containing the square shaped crushed regions (50). 4. It is a production method in accordance with claim 1, and its feature is; It includes the process step of creating a crushed zone (40) containing crushed zones (50) with equal or different crushing spacing (d) between them. 5. A production method according to any one of claims 2, 3 or 4, and its feature is; It includes the process step of obtaining the crushed area (40) with 5x5 mm square crushed areas (50) side by side and/or consecutively, with a crushing gap of 5 mm (d). 6. A production method according to any one of claims 2, 3, 4 or 5, and its feature is; It includes the process step of crushing the unfolding sheet (20) in the press so that the crushed region (50) has a depth of 2/3*Ü of the thickness of the unfolding sheet (20). 7. It is a production method according to claim 1, its feature is; It includes the process step of shaping the crushed unfolding sheet (30) by bending. 8. Swing arm (10) used in the suspension systems of vehicles, consisting of an unfolding sheet (20) containing a crushed area (40).