ANSI ASTM F1352-2008 Standard Guide for Fixed Blade Broadhead Performance and Safety Standards《固定剪刃的粗大尖形铁箭头的性能和安全标准用指南》.pdf
《ANSI ASTM F1352-2008 Standard Guide for Fixed Blade Broadhead Performance and Safety Standards《固定剪刃的粗大尖形铁箭头的性能和安全标准用指南》.pdf》由会员分享,可在线阅读,更多相关《ANSI ASTM F1352-2008 Standard Guide for Fixed Blade Broadhead Performance and Safety Standards《固定剪刃的粗大尖形铁箭头的性能和安全标准用指南》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F1352 08 (Reapproved 2013) An American National StandardStandard Guide forFixed Blade Broadhead Performance and Safety Standards1This standard is issued under the fixed designation F1352; the number immediately following the designation indicates the year oforiginal adoption or, in the
2、case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide covers the formulation of preliminary guide-lines in six areas of broadhead p
3、erformance and safety.1.2 The first three guidelines, flight, penetration, andsharpness, are related to performance, but they can have somebearing on safety. The last three, impact resistance, assemblyand attachment methods, and packaging, determine to a greatdegree the safety level of the broadhead
4、 in the hands of the enduser.1.3 The values stated in inch-pound units are to be regardedas standard. No other units of measurement are included in thisstandard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the us
5、er of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Terminology2.1 Definitions:2.1.1 blades, nthe sharp, laterally extended elements ofthe broadhead that perform the task of cutting after the arrowimpact
6、s the target.2.1.2 broadheads, ndevices for attachment to the forwardend of an arrow that are equipped with one or more sharpcutting blades. Broadheads are used when hunting with a bowand arrow to harvest game animals.2.1.3 ferrule, nthe central structural section or componentof the broadhead to whi
7、ch the forward end of the arrow shaftis attached. In some broadhead types, the ferrule is integralwith the blades. In other types of broadheads, the ferrule hasprovisions to mount separable blades, but it may also have oneor more integral blades. The ferrule may have a projectingthreaded shaft that
8、screws into a socket in the forward end ofthe arrow shaft, or it may have a hollow rear section into whichthe forward end of the arrow shaft is inserted.2.1.4 flight, nthe path taken by the arrow after it islaunched by the bow, but specifically including the character-istics of the motion of the arr
9、ow as it proceeds along the pathof flight.2.1.5 penetration potential and penetration, npenetrationpotential is the combination of many factors that determine thepotential of an arrow to penetrate any target that it impacts.These factors are principally the mass and velocity of thearrow, the charact
10、eristics of the broadhead being utilized(number of blades, cutting diameter, etc.), and the manner offlight of the arrow. Penetration is the actual depth an arrowpenetrates in a given target. Considering that an arrow hasgiven penetration potential, the actual depth of penetration willbe a function
11、of the material and consistency of the target andthe manner or attitude of the arrow when it strikes the target.2.1.6 tip, nforward end of broadhead which may or maynot be a blade, but may be threaded to accept starter or pilotblade.3. Significance and Use3.1 This guide is not intended to be all-inc
12、lusive. There maybe additional aspects of performance and safety that need to beaddressed in order to have a comprehensive study of thesubject matter.3.2 The suggested preliminary guideline summaries thatfollow were developed by a consensus of bowhunters withmany years of field experience, industry
13、people with knowl-edge in the design and manufacture of broadheads, andindividuals experienced in the distribution and retail areas ofthe business who have close contact with end users.4. Flight4.1 It is quite probable that well-directed straight-line flightis the most important characteristic of an
14、 arrow equipped witha broadhead. All other factors, such as good penetrationpotential and high-impact resistance, cannot be used to theirfull extent if the broadhead-equipped arrow does not strikewhere it is aimed.4.2 Straightness of flight also contributes to the performanceand humaneness of the br
15、oadhead in that it increases theprobability of hitting the target, and enhances penetrationpotential by reducing energy loss due to an angular impact.Straight flight may also contribute to safety.1This guide is under the jurisdiction of ASTM Committee F08 on SportsEquipment, Playing Surfaces, and Fa
16、cilities and is the direct responsibility ofSubcommittee F08.16 on Archery Products.Current edition approved May 1, 2013. Published August 2013. Originallyapproved in 1991. Last previous edition approved in 2008 as F1352 08. DOI:10.1520/F1352-08R13.Copyright ASTM International, 100 Barr Harbor Drive
17、, PO Box C700, West Conshohocken, PA 19428-2959. United States14.3 Fundamental principles of aerodynamics should be ap-plied to any broadhead design and manufacture to achievestraightness of flight. Specifically, concentricity of the ferrule,balanced placement of the blades with respect to the cente
18、rlineof the ferrule, elimination of warps in the blades, and closeweight control for consistency and balance are importantfactors in the design and manufacture of broadheads. Accept-able flight may be affected by number of blades, cuttingdiameter, and venting cutout configuration.4.4 Mounting the br
19、oadhead on the arrow shaft can be acritical operation. For aerodynamic reasons, it is important thatthe blades of the broadhead be aligned accurately with thelongitudinal centerline of the arrow shaft. This is a function ofseveral factors: consistent alignment of the blades to theferrule, concentric
20、ity of the ferrule, and alignment duringassembly of the ferrule and the shaft. For broadheads employ-ing threaded shaft mounting into inserts, the insert must beconcentric with the centerline of the shaft, and the contactingbase shoulder of the broadhead must be square with thecenterline of the ferr
21、ule. For broadheads with hollow bases intowhich the arrow shaft is inserted, the cylindrical or taperedbore of the ferrule must be concentric with the body of theferrule. For a cylindrical bore, the inside diametral tolerancemust ensure a tight fit with the arrow shaft to maintainalignment. For a ta
22、pered bore, the matching taper on the arrowshaft must be concentric with the centerline of the shaft.4.5 When an arrow is being launched or is in flight, theblades of a broadhead act as guidance vanes tending to assumecontrol of the flight unless counteracted by adequately sizedand oriented fletchin
23、g or other control elements attached to thearrow. Normal practice is to use natural feather or syntheticvane fletching at the rear of the arrow for this purpose. Ingeneral, the best control for straight flight patterns is obtainedusing straight-line fletching that is offset from the centerline ofthe
24、 shaft, or fletching that is applied with a spiral or helicaltwist. This type of fletching causes the arrow to spin around itslongitudinal axis in flight, producing improved directionalstability. Increased drag at the rear of the arrow also aidsdirectional stability. The requirement for the level of
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
最后一页预览完了!喜欢就下载吧,查找使用更方便
2000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ANSIASTMF13522008STANDARDGUIDEFORFIXEDBLADEBROADHEADPERFORMANCEANDSAFETYSTANDARDS 固定 粗大 尖形铁 箭头 性能 安全标准

链接地址:http://www.mydoc123.com/p-432809.html