在金属结构的连接方式中，焊接占据着无可替代的核心地位。所谓焊接件，是指通过加热、加压或两者并用，使两个或以上分离的金属构件在原子尺度上实现永久结合而形成的组件或结构。

(1) Base components: All five working surfaces of the worktable feature a 100 mm × 100 mm grid (typically the D28 series) or a 50 mm × 50 mm grid (typically the D16 series), and the worktable is marked with scale graduations.

数控加工中心是现代制造业中的关键设备，其正确操作与维护保养对于确保机床的稳定运行和延长使用寿命至关重要。操作人员需负责设备的使用、日常维护及基础保养

The Evolution of CNC Vol. 1: CNC Turning – A Preview of This Issue: The principles and characteristics of CNC turning; Key parameters of CNC turning; Typical applications of CNC turning; The ballpoint pen in your hand, a car drive shaft, precision nuts found everywhere… Take a closer look

Sheet metal manufacturing is optimised and upgraded with the help of modern processing equipment during the actual processing of sheet metal, which can improve the accuracy of the parts to a greater extent and enable the processing of more complex shapes of parts. Unloading: The main unloading equipments for sheet metal are CNC equipments.

设计优化· 精准测量与布局：在设计初期，对车间进行精确的实地测量，结合车间的生产工艺、设备布局、人员流动等因素，合理规划车间通风管道的走向、位置和分布。

Construction of Steel Structures: Verticality Correction – Verticality Correction of Steel Columns 1–3 2020.pptx, Course Project 2 for ‘Construction of Steel Structures’: Construction of a Single-storey Steel Structure Workshop Task: Verticality Correction of Steel Columns Lecturer: Associate Professor Zhang Guangjun E-

随着工业4.0时代的到来，CNC加工技术也在一步一步地发生着变化。除了在质量上追求突破，很多企业家也在追求自动化生产！自动化是制造业的趋势。但是，众所周知

Turn-mill composite machining centre is a place where lathe and milling machine are processed together. In order to improve the machining efficiency and machining accuracy of complex shaped products, craftsmen have been seeking for more precise machining process methods.

First, in order to ensure that the thread of the guide, processing spindle rotation week, the feed of the tool must be equal to the thread of the guide, the feed is larger; in addition, the strength of the threaded tool is generally poor, so the threaded tooth type is often not once processed, the need for many times for cutting.