A CONTROL ARM SUITABLE FOR REMANUFACTURING.

Abstract

The invention relates to a control lever (10) comprising an inner housing (13) located within at least one body (12), at least one purlin (11) positioned within the said inner housing (13), at least one bearing (14) which positions the spherical part of the said purlin (11) without gaps within the inner housing (13), at least one washer (15) positioned in the upper neighborhood of the said bearing (14) pushing the bearing (14) towards the inner housing (13) and ensuring that the purlin (11) is tightly positioned within the body (12), and an axial projection (16) extending as a single unit in the upper neighborhood of the body (12).The novelty of the invention is characterized by the inclusion of an additive manufacturing coating layer (17) added to the axial projection (16) by additive manufacturing and a reconstituted closure form (F3) defined by this additive manufacturing coating layer (17) in the region corresponding to the machining opening of the initial production closure form (F2) obtained by machining on the aforementioned axial projection (16) and the removal of the initial production closure form (F1). Figure 3

Description

1 TARIFF A CONTROL ARM SUITABLE FOR REMANUFACTURING. TECHNICAL AREA 5 The invention relates to a control lever used in vehicles, intended for remanufacturing. PREVIOUS TECHNIQUE Common control levers used in vehicle suspension and steering systems, usually its body is made of cast or forged metal, and at the end of the body These are components that have a joint region containing a global joint. Commonly found in the market. In practice, the connection between the body and the ball joint is established during the manufacturing phase. 15 by forcing the tip of the body material to plastically deform inwards This is achieved with a one-time closing structure. In other words, the joint the pin, hinge bearing, elastomer bellows and, if present, adjustment rings, on a part of the housing after being placed inside the nest, the edge area of ​​the body around this nest By being flush with the inside, the hinge components are permanently locked into the housing. This structure, While providing a fast and cost-effective solution in terms of mass production, the joint inside 20 a non-removable, one-way closure geometry between the components and the body It causes it to form. In standard applications, control levers are repeatedly used throughout the vehicle's lifespan. 25 It is exposed to. Especially in the global joint region, the joint pin and the joint. Wear occurs at the tribological contact surfaces between the bearings. Elastomer Tearing or embrittlement in the bellows results in a compromised seal and leakage into the joint. Dirt and water ingress accelerate. As a result of this process, the joint torque goes outside the nominal range. is dropping, joint play is increasing and the control arm, manufacturer or service authorities 30 It no longer meets the limit values ​​defined by the current system. In practice, control arms that have reached this stage are structurally made of body material. Even though it is largely robust, the disposable closure structure at the joint area Due to this, it is deemed irreparable and is scrapped. Thus, the body... 2 and the economic value of the other robust components on the body cannot be utilized It will be lost. The approach developed in the previous technique to overcome this problem is mostly The solution is a complete control arm replacement. Service procedures and spare parts 5 in the market, only the internal components of a worn or voided spherical joint or instead of replacing the ball joint pin, a completely new control arm assembly. is preferred. In some applications, the closing area on the body is rough. Attempts are made to open it by cutting or grinding using various methods, but in this case Irreversible material loss occurs in the body cross-section, joint 10 the geometry of its housing is deteriorating and a reliable reconstruction on the same body is not possible. It is not possible to create a closure structure. Furthermore, the known service... in their solutions, a standardized closure for re-closing the joint. a geometry that is integrated with the form or body and suitable for repeated use Because it is unforeseen, the interventions made generally exceed the manufacturer's technical specifications. These repairs remain inadequate and lack reliability. In addition, metal additive manufacturing and material deposition technologies are known techniques. This includes local repair of various automotive components and surface filling. 20 for use in applications or reconstruction of wear zones However, these technologies have a global joint closure region on the control arms. with a special closing geometry of the fuselage for the purpose of reconstruction. There is no solution that integrates a systematic remanufacturing process. Common applications are mostly localized, such as crack repair or surface hardening. limited to repair operations, while preserving the load-bearing integrity of the body, the internal joint 25 providing access to its components, and then repeatedly through additive manufacturing. It does not offer a reclosable hinge architecture. Therefore, the previous a technically advantageous remanufacturing in terms of both cost and resource efficiency. the approach fails to provide a systematic way to reuse the control arm body. It fails to offer a structure and method that supports this in this way. 30 In conclusion, all the problems mentioned above require an innovation in the relevant technical field. This has made it necessary to do it. 3 A BRIEF DESCRIPTION OF THE INVENTION The present invention eliminates the aforementioned disadvantages and the related technical It involves a control lever, designed to bring new advantages to the field. One aim of the invention is to create a structurally sound body even after it has reached the end of its life cycle. a control that, as long as it remains, can be brought back into use through remanufacturing It means putting your arm forward. Another aim of the invention is to reduce the scrap rate and part cost by using body 10 and similar high-cost components that can be reused through repeated reuse. The goal is to develop a control lever suitable for manufacturing cycles. All the purposes mentioned above and those that will emerge from the detailed explanation below. The existing invention is intended to be reproduced for the purpose of realizing it; at least one body 15 an inner nest located within it, at least one lovebird positioned within the aforementioned inner nest, the aforementioned lover's spherical part is positioned seamlessly within the inner socket. A small bed, positioned in the upper vicinity of the aforementioned bed, encloses the bed in the inner cavity. the one that pushes correctly and ensures the lover is firmly positioned inside the body. a small scale and an axial projection extending integrally in the upper vicinity of the body 20 It is a control lever that includes. Accordingly, its innovation lies in machining on the axial projection. with a machining process obtained by removing the initial production molding form. In the region corresponding to the opened plaster form, axial manufacturing is performed through additive manufacturing. an additive manufacturing coating layer added to the protrusion and this additive a reconstituted closure defined by the manufacturing coating layer 25 It includes the form. The invention describes a control lever that has reached the end of its lifespan or is no longer suitable for use. It is a method for its reproduction, and the control arm in question is a body, an internal socket located inside the body, and a purlin positioned within the internal socket, the aforementioned 30 at least one bed surrounding the spherical part of the lover and the top of the aforementioned bed at least one scale in its vicinity and a monolithic structure in the upper vicinity of the body. an axial projection extending as and a located at the free end of the axial projection 4 The first production involves a coating form. The novelty of the invention lies in the following method steps: It includes: ∑ A body without cracks, permanent deformation, or structural damage. Supply of a replacement control arm that has reached the end of its lifespan. ∑ The first production die-cast form located on the axial projection is machined by 5 The upper edge of the body is machined by lifting it in a controlled manner. the creation of the molded form opened during manufacturing and axial movement during this process preservation of the main cross-section of the projection, ∑ By accessing the inner cavity through the splicing form created by machining. Removing the lover, bed, washer and any other internal components from the inner housing, 10 ∑ After cleaning the inner housing and verifying its dimensional integrity a new lover for the inner nest, at least one new bed and at least one new stamp by insertion of the spherical part of the lover into the inner socket via the bearing. positioning, ∑ In the open region defined by the splicing form created by machining, axial 15 an additive manufacturing coating applied to the protrusion through additive manufacturing. by accumulating a layer, it becomes integrated with the body of the control lever. obtaining the reconstructed closing form and in the process, the lover, It is the axial compression of the bearing and washer stack towards the inner housing. BRIEF DESCRIPTION OF THE FIGURE Figure 1 shows a representative image of the initial production die-cast form of the control arm, which is the subject of the invention. The front view is shown. Figure 2 shows the machining-formed die-cast control lever, which is the subject of the invention. A representative perspective view is provided. Figure 3 shows the reconstructed closing form of the control lever that is the subject of the invention. A representative perspective view is provided. 30 DETAILED DESCRIPTION OF THE INVENTION This detailed explanation of the invention only serves to better understand the subject. This is explained with examples that will not create any limiting effect. Referring to Figure 1, the subject of the invention is the control lever (10), which connects the chassis and the wheel carrier of the vehicle. a joint that provides a hinged connection between elements, especially one with a spherical joint at the end 5 It is a load-bearing element structured in a way that makes it suitable for remanufacturing. Control lever (10), suspension and steering during normal service life while safely carrying loads, torque loss occurs over time in the joint area and When it is taken out of service due to axial clearance, its body (12) structural integrity with a specially designed closure zone to protect the other joint interior 10 It allows access to and replacement of its components. This closure zone is the first Suitable for sealing by plastic deformation in manufacturing (coating process), remanufacturing During this process, the material can be opened by machining and then subjected to additive manufacturing or a new closure structure can be built using equivalent material stacking techniques It has the geometry. Thus, the control lever (10), body (12) part is repeatedly re-shaped. with the strength and rigidity to withstand manufacturing cycles, both for initial production and It is subsequently defined as a vehicle suspension component compatible with remanufacturing. Control arm (10) at least one purlin (11), at least one stem (12) and at least one inner socket (13) It includes. The aforementioned lover (11) has a joint located on the vehicle at one end. 20 connected to the element by means of the conical shank region, and at the other end to the inner socket (13) The bed (14) inside contains a spherical head rotating metal pin structure, spherical head transfers axial and radial loads to the body (12) in a controlled manner Thanks to its design, it allows for articulated movement in both rotational and tilting directions. The mentioned body (12) functions as the main supporting element of the control arm (10) 25 and at least one interior in which the lover (11) can be placed and work. It is a body with an integrated structure, manufactured by casting or forging, containing a housing (13). (12). The mentioned body (12) withstands the dynamic loads generated under vehicle operating conditions. It is designed to have the rigidity and strength to meet the needs of the inner housing (13) area. It carries the axial projection (16) located in the upper neighborhood of the region and thus 30 Axial positioning of the purlin (11), bearing (14) and washer (15) components It provides the necessary reference surface for adjusting the tightness. The mentioned inner housing (13) the inner part of the body (12) where the spherical part of the lover (11) is placed a cavity, preferably with a geometry containing cylindrical and / or spherical surfaces. 6 and surrounds the spherical head of the lover (11) by means of at least one bed (14), The ball joint allows rotational and bending movement while being controlled in the axial direction. surface roughness, diameter tolerances, and that will ensure precise positioning. With its shape characteristics, the loads coming from the purlin (11) are safely transferred to the body (12) It serves to transfer. 5 The control lever (10) contains at least one bearing (14) and at least one washer (15). bed (14), inner socket (13) located inside the body (12) of the spherical part of the lover (11) global, allowing for positioning within it with a gapless and controlled tightness. a bearing structure (14) that at least partially surrounds the joint, axial and 10 to ensure that radial loads are transferred evenly to the body (12) and the joint torque It is a component that serves to keep it within the targeted range. The stamp mentioned (15) is positioned in the upper neighborhood of the bed (14) and inside the bed (14) during assembly by pushing it towards the socket (13) the spherical part of the lover (11) is tightly inside the body (12) It is a ring-shaped element that ensures a tight positioning, and if necessary, 15 First production stamping form (F1) located on the bed (14) and axial projection (16) or reconstructed closure form obtained after remanufacturing (F3) axial clearance and preloading are used as regulatory elements between them. It allows fine adjustment of its values ​​and thus the articulated control lever (10) Contributing to achieving the desired axial stiffness and torque characteristics in the region 20 provides. The control arm (10) contains at least one axial projection (16). The aforementioned axial The projection (16) extends as a single unit in the upper neighborhood of the body (12) and in the inner socket. (13) The axial direction of the components of the purlin (11), bearing (14) and washer (15) positioned 25 It is a structure that forms a reference for compression. The free end of the axial projection (16) plastic deformation of the control arm (10) in the first manufactured condition. By shaping correctly, the first production casting form (F1) is obtained, and this first production coating form (F1) washer (15) through bed (14) and bed (14) through by transmitting the axial load to the spherical joint region (11) and axial 30 This ensures that the gap is kept within the targeted range. During the remanufacturing process. The first production stamping form (F1) located on the axial projection (16) was machined. When removed, a splicing form (F2) is created by machining, this open access to the area for the removal of internal components and the installation of new ones. 7 It provides. Then, additive manufacturing coating on the same axial projection (16). By creating the layer (F3), a recreated closing form (F3) is obtained. and thus axial projection (16) reclosure and axial compression It becomes an active structural element that fulfills its function. The control arm (10) contains at least one first production casting form (F1). The first mentioned Production molding form (F1), on the upper edge of the fuselage (12) and the axial projection (16) The body (12) in the first production of the control lever (10) located at the free end obtained by the inward coating of the material through plastic deformation It is the surrounding edge region. The first production coating form (F1) is 10 from the washer (15) to the bed. (14) and by transmitting the load in the axial direction to the purlin (11) through the bed (14), the purlin (11) the spherical part is positioned tightly inside the inner housing (13) and This structure enables the locking of the global joint region. This structure allows for axial clearance and with a geometry that will help keep the joint torque within the targeted values ​​and It is designed within dimensional tolerances. In the remanufacturing process, the initial production stamping form is 15. (F1) is removed in a controlled manner by machining over the axial projection (16). It creates a spliced ​​form (F2) by machining. This allows access to the internal components. is provided and then an additive manufacturing coating layer (F3) is applied in the same area. This forms the basis for obtaining the recreated closure form (F3). Referring to Figure 2, the control lever (10) is a stamping form (F2) opened by at least one machining process. It includes. The aforementioned machining-opened die form (F2) is subject to remanufacturing. the first production molding form (F1) located on the axial projection (16) in the process As a result of controlled lifting by machining, the upper edge of the body (12) formed and positioned in the inner socket (13) such as the purlin (11), bed (14) and washer (15) 25 It is an open area that allows for the removal of components and the insertion of new ones. The stamping form (F2) opened by machining shows the main cross-section of the axial projection (16). only the material corresponding to the first production coating form (F1) will protect is obtained by removing the amount of the body (12); thus the structural integrity of the body (12) and while maintaining the load-bearing function, the necessary clearance for accessing the internal components is 30 is provided. The geometry of the open area in question is axially adjusted after remanufacturing. The additive manufacturing coating layer (F3) will be applied to the protrusion (16) and then re-applied. secure creation of the created closing form (F3) and this form Applying axial compression through the washer (15) to the bed (14) and the purlin (11) 8 It is possible to regain the desired axial clearance and preload values. It is designed to the specified dimensions and tolerances. Referring to Figure 3, the control lever (10) has at least one reconstituted closing form (F3) It includes. The aforementioned reconstituted closure form (F3) is manufactured by machining 5 on the open area defined by the opened plaster form (F2), especially the axial projection (16) Additions to the surface by additive manufacturing or other material stacking methods obtained as a result of material application and control lever (10) components are listed below It is the new closure region that compresses correctly. Reconstituted closure form (F3), Additive fabrication coating layer (F3) located on the axial projection (16) 10 having a circumferential ring or similar geometry formed by, In the assembly position, the washer (15) goes over the bed (14) and the lover over the bed (14). (11) transmits the load in the axial direction to the spherical part of the purlin (11) inside the inner housing (13). positioning with the desired tightness and axial positioning in the global joint area. It ensures that the gap and preload are maintained at the targeted values. Again 15 Dimensions, surface roughness and geometric shape of the formed closure form (F3) tolerances both of the additive manufacturing coating layer (F3) integrated with the body (12) and will ensure that it bonds without forming cracks, as well as being repeatedly reconnected. ensuring the closing function is reliably performed in manufacturing processes It is determined in a way that will allow it. 20 The additive manufacturing coating layer (F3) located on the control arm (10) is re- to obtain the formed closing form (F3) the axial projection (16) added to by additive manufacturing or other metal material stacking methods metal layer, inner housing (13) and the joint surrounding this inner housing (13) 25 to be located in a continuous ring or similar form at the top of the region It is structured. Additive fabrication coating layer (F3), with axial projection (16). to provide a metallurgically and / or mechanically integrated bond, in terms of selected material composition, layer thickness and deposition strategy The control arm (10) is designed to be compatible with the body (12) material and the final 30 by defining the geometry of the reconstructed closure form (F3) in this case axially from the washer (15) to the bed (14) and from the bed (14) to the sash (11) This allows the transmission of compressive force; thus in the spherical joint region. 9 Re-obtaining the desired axial clearance, preloading and torque characteristics It contributes to its realization. Accordingly, the invention is for a car that has reached the end of its lifespan but whose body (12) is structurally sound. For the remanufacturing of a control arm (10), at least the following 5 It is implemented using a method that includes the following steps: i) Initial production formed on the axial projection (16) during the initial production. Procurement of the control lever (10) containing the coating form (F1) and visual, cracks on the trunk (12) by non-destructive testing or similar methods, Confirmation that there is no deformation or permanent damage, 10 ii) Machining of the first production die-cast form (F1) located on the axial projection (16) by lifting the upper edge of the body (12) in a controlled manner during manufacturing The creation of the stamping form (F2) by machining and during this process Preservation of the main cross-section of the axial projection (16), iii) Access to the inner slot (13) via the splicing form (F2) opened by machining 15 by providing the existing lover (11), bed (14), pulley (15) and other associated interior Removal of components from the inner housing, iv) Cleaning the inner housing (13), surface treatment or measurement if necessary. after checking and then putting the new lover (11) into the inner nest (13), new With the placement of the bed (14) and at least one new stamp (15), the lover's (11) global 20 positioning of the part inside the inner housing (13) by means of the bed (14), v) Selecting the thickness and placement of the washer (15), purlin (11), bearing (14) and washer (15) pre-setting of the stack in terms of axial tightness and targeted joint torque to be done, vi) On the axial projection (16), the stamping form (F2) opened by machining and 25 In the defined open area, the additive manufacturing coating layer (F3) is continuous. reconstructed by accumulating in a ring or similar form Obtaining the closing form (F3) and during this process the purlin (11), bed (14) and The stack of washers (15) is compressed downwards and the desired inside the inner slot (13) is Ensuring axial clearance and preload values ​​are met, 30 vii) If necessary, final measurement and closure form (F3) recreated. Application of finishing machining and re-machining to provide the geometry The tensile and compressive forces, joint torque and on the manufactured control lever (10) Performing functional tests such as axial clearance measurements. The subject of the invention is the control lever (10) and the body (12) of which the end of its life has structural integrity Instead of scrapping the control arms that are still in good condition, they are remanufactured. By ensuring that it is brought back into use, both the cost of parts and Scrap and environmental burden are significantly reduced. Thus, the warranty is extended to 5 years. This reduces parts waste during turnaround times, simplifies inventory management, and improves maintenance. Repair processes reduce the total cost of ownership. The scope of protection of the invention is set out in the attached claims and is strictly adhered to. The detailed explanation cannot be limited to the examples given. Because in technique, there are 10 A specialist, without deviating from the main theme of the invention, will do what is described above. It is clear that similar structures can emerge in light of this. 11 REFERENCE NUMBERS GIVEN IN THE FIGURE Control Lever 11 Lovers 12 Fuselage 5 13 Inner Slots 14 Beds Stamp 16 Axial Projections 17 Additive Manufacturing Coating Layer 10 F1 First Production Stamping Form F2 Machining-Opened Stamping Form F3 Reconstructed Closing Form

Claims

12 REQUESTS 1. The invention replaces a control system that has reached the end of its lifespan or is no longer suitable for use. a method for the remanufacturing of the arm (10) and the control in question arm (10) at least one body (12), a 5 located within the aforementioned body (12). inner socket (13), with a lover (11) located in the inner socket (13) and the aforementioned lover (11) at least one bed surrounding the global part (14) and the aforementioned bed (14) at least one scale (15) located in the upper neighborhood and the upper body (12) at least one axial projection extending as a single unit in its vicinity (16) and a first production 10 located at the free end of the aforementioned axial projection (16) It includes the coating form (F1) and its feature is the following method steps: It includes: ∑ Cracks, permanent deformation or structural damage on the body (12) Procurement of the missing end-of-life control arm (10), ∑ The first production stamping form (F1) located on the axial projection (16) 15 The top of the body (10) is lifted in a controlled manner by machining. Forming of the stamping form (F2) opened by machining on the edge and during this time the main cross-section of the axial projection (16) is preserved, ∑ Through the splicing form (F2) opened by machining, into the inner slot (13) by providing access to the lover (11), bed (14), stamp (15) and other interior 20 if any. Removal of components from the inner housing (13), ∑ Cleaning the inner housing (13) and verifying its dimensional integrity then into the inner nest (13) a new lover (11), at least one new bed (14) and with the placement of at least one new stamp (15) the spherical part of the lover (11) positioning inside the inner socket (13) by means of the bed (14), 25 ∑ In the open area defined by the stamping form (F2) created by machining, an additive manufacturing process on the axial projection (16) by depositing the manufacturing coating layer (17) control arm (10) a reconstructed closure form integrated with the body (12) (F3) obtaining and during this time stacking the lover (11), bed (14) and stamp (15) 30 axial compression into the inner housing (13).

2. The invention is intended to be reproduced; containing at least one body (12) an inner nest (13), at least one lover (11) located in the aforementioned inner nest (13), 13 The spherical part of the aforementioned lover (11) is inside the inner socket (13) without any gaps. at least one bed (14) positioned above the aforementioned bed (14) positioned next to it, pushing the bed (14) towards the inner socket (13) and the lover (11) ensuring that it is positioned tightly inside the body (12) at least one A 5 that extends as a single unit in the upper neighborhood of the scale (15) and the body (12). It has a control lever (10) with an axial projection (16); its feature is the aforementioned the first production stamping form by machining on the axial projection (16) (F1) is a chip-opened coating obtained by removing the chip. In the region corresponding to form (F2), axial by additive manufacturing an additive manufacturing coating layer (17) added on the protrusion (16) 10 and defined by this additive manufacturing coating layer (17) It includes a recreated closing form (F3).