Approaches for Preventing Tool Wear in Sheet Metal Forming Processes

Abstract

Sheet metal forming processes, the purpose of which is to give the shaped material appropriate mechanical, dimensional and shape properties, are characterised by different values of unit pressures and lubrication conditions. Increasing the efficiency of tool work by increasing their durability, efficiency and reliability is still one of the main indicators of increasing production efficiency. Tool wear in metal forming technologies significantly differs from the character of wear in other methods of metalworking, such as machining. This article presents the characteristics of tool wear mechanisms used in sheet metal forming. Possibilities of increasing the durability of tools by applying coatings produced by laser techniques, chemical vapour deposition and chemical vapour deposition are also discussed. Great emphasis is placed on self-lubricating and functional materials and coatings. Current trends in lubricants and lubrication methods in sheet forming, including tool texturing, are also presented.

Towards the Digital Model of Tool Lifecycle Management in Sheet Metal Forming

“…In [105] was given a model which uses a combination of machine learning, computational design, and optimization techniques to generate manufacturable sheet metal parts. Coatings used different techniques such as laser, chemical vapor deposition (CVD), and physical vapor deposition (PVD), which significantly increase tool life by providing wear resistance, reduced friction, and improved surface finish in the process of sheet metal forming [106]. Sheet metal forming (SMF) is a critical technology for manufacturing lightweight, thin-walled, complex-shaped components, and numerical simulation and theoretical modelling have been increasingly used to enhance the performance of new SMF technologies [107].…”

The role of manufacturing-induced texture on the tribological performance of cold work tool steels

“…On the other hand, the literature shows a more limited number of studies related to the application in metal forming tools. Only a few works have been devoted to evaluating the effect of textures on the tribological performance of these tools, with the main ones described in the review presented by Trzepiecinski et al [20]. In all the examples reported in these references, the surface textures were produced through specific processes conducted after the manufacturing of the tool, aiming to obtain textures with regular and well-defined shapes.…”

An Investigation into the Friction of Cold-Rolled Low-Carbon DC06 Steel Sheets in Sheet Metal Forming Using Radial Basis Function Neural Networks

“…Sheet metal forming (SMF) is the basic process for obtaining a finished product with a complex shape. When designing the deep drawing process for a product or a semifinished product from sheet metal, the mechanisms specific to this technology need to be taken into account to guarantee the appropriate surface roughness of the drawpiece and high durability of the tool [1]. In the cylindrical drawpieces formed, there is the so-called drawing zone (in the flange part of the drawpiece) and the stretching zone in the bottom of the drawpiece [2].…”