Industrial
In the Industrial Revolution, simple mass production techniques were used at the Portsmouth Block Mills in England to make ship pulleys for the Royal Navy in the Napoleonic Wars. This was achieved in 1803 by Marc Isambard Brunel in collaboration with Henry Maudslay under the direction of Sir Samuel Bentham.[16] The first unequivocal examples of manufacturing operations carefully designed to reduce production costs through skilled labor and the use of machines appeared in the century in England.[17].
The Navy was in a state of expansion that required the manufacture of 100,000 pulley blocks a year. Bentham had already achieved remarkable efficiency at the docks by introducing motorized machinery and reorganizing the dockyard system. Brunel, a pioneering engineer, and Maudslay, a pioneer of machine tool technology who had developed the first industrially practical screw-cutting lathe in 1800, which standardized screw thread sizes for the first time, which in turn allowed the application of interchangeable parts, collaborated on plans to make block-making machinery. By 1805, the shipyard had been completely upgraded with revolutionary purpose-built machinery at a time when products were still individually constructed from different components. A total of 45 machines were needed to perform 22 processes on the blocks, which could be manufactured in one of three possible sizes. The machines were made almost entirely of metal, improving their precision and durability. The machines made marks and notches in the blocks to ensure alignment throughout the process. One of the many advantages of this new method was the increase in labor productivity due to the reduced need for labor to operate the machinery. Richard Beamish, assistant to Brunel's son and engineer, Isambard Kingdom Brunel, wrote:
By 1808, annual production of the 45 machines had reached 130,000 blocks and some of the equipment was still in operation until mid-century.[16][18] Mass production techniques were also used to a fairly limited extent to make watches, and to make small arms, although the parts were not usually interchangeable. Although produced on a very small scale, the Crimean War gunboat engines designed and assembled by John Penn of Greenwich are recorded as the first case of the application of mass production techniques (although not necessarily the assembly line method) to naval engineering.[19] Fulfilling an Admiralty order for 90 sets for his high-revving, high-pressure hood engine design, Penn produced them all in 90 days. He also used Whitworth Standard threads throughout. The prerequisites for widespread use of mass production were interchangeable parts, machine tools, and energy (physical) energy, especially in the form of electricity.
Some of the organizational management concepts needed to create mass production of the century, such as scientific management, had been pioneered by other engineers (most of whom are not famous, but Frederick Winslow Taylor is one of the best known), whose work would later be synthesized into fields such as industrial engineering, manufacturing engineering, operations research, and management consulting. Although after leaving the Henry Ford Company, which was renamed Cadillac and was later awarded the Dewar Trophy") in 1908 for creating mass-produced, interchangeable precision engine parts, Henry Ford downplayed the role of Taylorism in the development of mass production at his company. However, Ford management conducted time studies and experiments to mechanize his factory processes, focusing on minimizing worker movements. The difference is that while Taylor Focusing primarily on worker efficiency, Ford also replaced labor using carefully arranged machines whenever possible.
In 1807, Eli Terry was contracted to produce 4,000 wooden movement clocks in the Porter Contract. At this time, the annual output of wooden watches did not exceed a few dozen on average. Terry developed a Milling Machine in 1795, in which he perfected the interchangeable parts. In 1807, Terry developed a spindle cutting machine, which could produce multiple parts at the same time. Terry hired Silas Hoadley and Seth Thomas to work on the facility's assembly line. The Porter Contract was the first contract requiring mass production of watch movements in history. In 1815, Terry began mass producing the first shelf clock. Chauncey Jerome"), an apprentice of Eli Terry, churned out up to 20,000 brass clocks a year in 1840 when he invented the cheap 30-hour OG clock.[21]
The United States War Department sponsored the development of interchangeable parts for cannons produced at the arsenals in Springfield, Massachusetts, and Harpers Ferry, Virginia (present-day West Virginia) in the early decades of the century, finally achieving reliable interchangeability around 1850. This period coincided with the development of machine tools, and gun shops designed and built many of them. Some of the methods used were a system of calipers to check the dimensions of the various parts and jigs and fixtures to guide machine tools and properly hold and align workpieces. This system became known as gunsmithing practice or American system of manufacturing, which spread throughout New England with the help of skilled gunsmithing mechanics who were instrumental in transferring the technology to sewing machine manufacturers and other industries, such as machine tools, combines, and bicycles. He did not make the parts interchangeable until the late 1880s, around the same time that Cyrus McCormick adopted modern manufacturing practices for making combines.
During World War II, the United States mass produced many vehicles and weapons, such as ships (i.e. Liberty-class ships, Higgins boats&action=edit&redlink=1 "LCVP (United States) (not yet redacted)"), airplanes (i.e. North American P-51 Mustang, Consolidated B-24 Liberator, Boeing B-29 Superfortress), jeeps (i.e. Willys MB), trucks, tanks (i.e. M4 Sherman) and M2 Browning and M1919 Browning machine gun"). Many vehicles, transported by ships, have been shipped in parts and later assembled on site.[22].
For the current energy transition, many components of wind turbines and solar panels are being mass produced.[23][24][25] Wind turbines and solar panels are used in wind farms and solar parks") respectively.
Furthermore, in current climate change mitigation, large-scale carbon sequestration has been proposed (through reforestation, blue carbon restoration, etc.). Some projects (such as the Trillion Tree Campaign) involve planting large numbers of trees. To speed up these efforts, the rapid propagation of trees can be helpful. Some automated machines have been made that allow for the rapid (vegetative) propagation of plants.[26] Additionally, for some plants that help sequester carbon (such as seagrasses!), techniques have been developed that help speed up the process.[27]
Mass production benefited from the development of materials such as cheap steel, high-strength steel, and plastics. The machining of metals was greatly improved with high-speed steel") and, later, with very hard materials such as tungsten carbide for cutting edges.[28] Manufacturing with steel components was favored by the development of electric welding") and stamped steel parts, which appeared in the industry around 1890. Plastics, such as polyethylene, polystyrene, and polyvinyl chloride (PVC), They can be easily molded by extrusion), blow molding or injection molding, allowing consumer products, pipes, containers and plastic parts to be manufactured at very low cost.
An influential article that helped frame and popularize the century's definition of mass production appeared in a supplement to the Encyclopædia Britannica of 1926. The article was written from correspondence with the Ford Motor Company and is sometimes credited with the first use of the term.