Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Review of Multi-material and Composite Parts Production by Modified
  Additive Manufacturing Methods   Aside from the capability of additive manufacturing (AM) methods in
fabricating components with complex geometries, two crucial potentials of this
manufacturing process that are worth mentioning are its flexibility in being
combined with other production methods as well as use of a variety of materials
in a single production platform to make multi-material and composite products.
Implementation of multiple materials in integrated structures has been shown to
improve the functionality, weight reduction and, by merging the assembly and
production into one stage, modify the manufacturing processes. Different
approaches towards modification of AM processes aimed to reach multi-material
or composite parts are being reviewed in this paper.

31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys