wilhelm hesse fasteners Germany wilhelm hesse models wilhelm hesse prices

wilhelm hesse fasteners are a type of fastener consisting of a head and a shank, used to tightly connect two parts (or components) with holes, forming a single unit. This type of connection is called a rivet connection, or riveting for short. It is a non-detachable connection. In riveting, the parts being joined are connected through the rivet's own deformation or an interference fit. There are many types of rivets, and they come in various forms. Rivets are typically used for joining objects together and usually require specific specialized tools for installation. Types of rivets include semi-round head rivets, flat cone head rivets, countersunk head rivets, semi-countersunk head rivets, flat head rivets, hollow rivets, tubular rivets, nameplate rivets, etc., to meet different operational requirements. They are mainly used for riveting various thin structural components in industries such as vehicles, ships, construction, machinery, and electronics.

wilhelm hesse fasteners history

The earliest metal deformation bodies may be the ancestors of what we know as rivets. For example, after successfully casting large bronze statues during the Bronze Age, Egyptians and Greeks used rivets to join the components together. In 1916, when H V White of the British Aircraft Manufacturing Company first obtained the patent for blind rivets capable of single-sided riveting, few people anticipated that this type of rivet would be applied so widely. From aerospace to office machines, electronic products, and sports field equipment, it can be said that these blind rivets have now become an effective and secure mechanical connection method. Hollow rivets were invented for equipment assembly; the exact time of their invention is not entirely clear, but harnesses were invented between the 9th and 16th centuries AD. Riveted harnesses, like horseshoes with nails, liberated slaves from heavy labor. Rivets also spurred many important inventions, such as tongs used by coppersmiths and blacksmiths, and sheep shears.

wilhelm hesse fasteners introduction

Common types include R type rivets, fan rivets, blind rivets (break-stem rivets), tree-form rivets, semi-round head, flat head, semi-hollow rivets, solid rivets, countersunk head rivets, blind rivets, and hollow rivets. These typically connect the riveted parts using their own deformation. Generally, cold riveting is used for sizes smaller than 14 mm, and hot riveting is used for sizes larger than this. However, there are exceptions. For example, nameplates on certain locks are riveted using the interference fit between the rivet and the lock body hole. R type plastic rivets, also known as expansion rivets, consist of a plastic male pin and a female collar. They do not require installation tools; the installation base is placed in a smooth hole, and the head is pressed down. The specially designed legs expand under force, locking firmly onto the mounting surface. They are often used to connect plastic housings, lightweight sheets, insulating materials, circuit boards, or any other thin, lightweight materials, offering an aesthetic, practical, and easy-to-use solution.

wilhelm hesse fasteners standards

Standards for rivet product dimensions: Specifically stipulate basic product dimensions; for products with rivets, this includes basic rivet dimensions, rivet closing, shoulder distance, undercut and chamfer, and end dimensions of external rivet parts. Standards for technical conditions of fastener rivet products. Mainly include standards for product tolerances, mechanical properties, surface defects, surface treatment, and product testing, along with corresponding specific regulations. Standards for rivet product acceptance inspection, marking, and packaging: Specifically stipulate the acceptable quality level and sampling plan for spot checks during factory acceptance, as well as product marking methods and packaging requirements. Standards for marking methods of standard parts, fasteners, rivets, bolts, and screws: Specifically stipulate complete and simplified product marking methods. Other rivet standards: Such as standards for fastener terminology, fastener product weight, etc.

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