| 摘要 |
A method for making a sewing machine includes step of cutting a board into pieces with desired sizes; step of pressing the pieces to have deformation portions to obtain enclosed or semi-enclosed parts; step of welding sides of each of the parts into welding portions so as to obtain frameworks with hollow interiors; step of welding connection plates to the frameworks to form the sewing machine body, and step of final finishing the sewing machine body. The sewing machine body includes a main frame composed of frameworks which are composed of a plurality of sidewalls and each framework includes a hollow interior defined and enclosed by the sidewalls. Connection plates are used to connect the frameworks.
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