## 1 Introduction
Optimizing the contact between a part and mold also demands attention. Due to the different thermal expansions of the mold and laminate, shear stresses develop in the contact area between the part and mold, resulting in unwanted spring-back. The application of a Fluorinated Ethylene Propylene (FEP) sliding layer can reduce the shear friction and the degree of spring-back [17]. Optimizing the lay-up and prestressing the laminate during manufacturing are additional methods to enhance the discussed contact area. The dimensional stability of composites is another important requirement for CFRP applications in many fields including optics. The fibrous structure of composite materials results in their anisotropy. Through a well-designed lay-up, mechanical properties can be customized in specific directions of the laminate, such as achieving higher stiffness in the direction under greater stress. It is even possible to attain zero or negative thermal expansion in specific directions. This has been investigated by [PERSON] [18] and [PERSON] et al. [19], who describe both analytical and experimental methods. [PERSON] and [PERSON] [20] studied the anisotropic behavior and thermal expansion of composite materials. They observed the relationship between fibre angle and deformation under thermal loading using 'L-shaped' specimens and provided a comparison between experimental measurements and an analytical model. The coefficient of thermal expansion of carbon tubes is addressed by [PERSON] et al. [21], primarily focusing on length expansion and the development of a measurement method. Another critical factor to consider regarding the stability of composite materials is deformation associated with moisture absorption. Observations by [PERSON] [22] and [PERSON] et al. [23] indicated that moisture absorption-induced deformation in the laminate significantly surpasses that caused by thermal loading. [PERSON] et al. 's findings suggest that, for epoxy resins, the behavior aligns with [PERSON]'s first law. Due to the difficult machinability of composites, their application often requires bonding as an alternative method to reach the required shape of the final product. Composite materials based on thermocetting resin allow the use of three subtypes of bonding technology, the so-called secondary bonding, co-bonding, and co-curing. According to the research of [PERSON] et al. [PERSON] et al. (2014) and [PERSON] et al. [PERSON] et al. (2015), co-curing achieves the lowest manufacturing deformation among these bonding technologies. In the publications by [PERSON] and [PERSON] and [PERSON] (2016) and [PERSON] et al. [PERSON] et al. (2017), the strength of various types of bonded joints is compared. Both authors concluded that co-curing produces joints with the highest strength. Based on these findings, co-curing can be considered the most suitable method for joining composite components if the device design allows for it. [PERSON] and [PERSON] and [PERSON] (2018) investigated the increased adhesion after laser surface treatment of co-bonded samples. The laser-treated specimens achieved twice the shear strength compared to the reference specimen. Laser surface treatment has also been investigated by [PERSON] et al. [PERSON] et al. (2019) in the context of secondary-bonded specimens. Their results indicate that within secondary bonding, the abrasive-treated surface achieves the same results as the laser-treated surface. The view on the influence of the thickness of the bonded joint on its strength has evolved and changed throughout history. Classical analytical models according to [PERSON] (1965) or [PERSON] (1968) assumed that higher bonded joint thickness leads to increased strength. However, more recent research has shown that the optimum strength is achieved by a bonded joint at the thickness of 0.1 mm to 0.5 mm ([PERSON] et al., 2018). [PERSON] et al. confirmed these findings in their experimental study of epoxy adhesives ([PERSON] et al., 2018).