The influence of the grain angle on the cutting force when milling wood is not yet detailed, apart from particular cases (end-grain, parallel to the grain, or in some rare cases 45°-cut). Thus, setting-up wood machining operations with complex paths still relies mainly on the experience of the operators because of the lack of scientific knowledge easily transferable to the industry. The aim of the present work is to propose an empirical model based on specific cutting coefficients for the assessment of cutting force when peripheral milling of wood based on the following input: uncut chip thickness and width, grain angle (angle between the tool velocity vector and the grain direction of the wood), density and tool helix angle. The specific cutting coefficients were determined by peripheral milling with different depths of cut wood disks issued from different wood species on a dynamometric platform to record the forces. Milling a sample into a round shape (a disk) allows to measure the cutting forces toward every grain angle into a sole basic diameter reduction operation. Force signals are then post-processed to carefully clean the natural vibrations of the system without impacting their magnitudes. The experiment is repeated on five species with a large range of densities, machining two disks per species for five depths of cut in up- and down milling conditions for three different tool helix angles. Finally, a simple cutting force model, based on the previously cited parameters, is proposed, and its robustness analysed.

除特殊情况（端面纹理，平行于纹理或在少数情况下为45°切割）外，铣削木材时，纹理角度对切削力的影响尚未详细说明。因此，由于缺乏易于转移到工业中的科学知识，设置具有复杂路径的木材加工操作仍主要依赖于操作员的经验。本工作的目的是基于以下输入数据，提出一种基于特定切削系数的经验模型，用于评估木材的外围铣削时的切削力：未切削的切屑厚度和宽度，晶粒角（刀具速度矢量与切削角之间的夹角）。木材的纹理方向），密度和工具螺旋角。特定的切割系数是通过在不同功率的平台上用不同深度的不同木料切割木材盘进行外围铣削来确定的，以记录力。将样品研磨成圆形（盘状）后，就可以测量唯一的基本直径减小操作中每个晶粒角的切削力。然后对力信号进行后处理，以仔细清洁系统的自然振动，而不会影响其大小。在五个具有大范围密度的物种上重复该实验，针对三个不同的刀具螺旋角，在上下铣削条件下针对五个切削深度，每个物种加工两个圆盘。最后，基于前面提到的参数，提出了一个简单的切削力模型，并对其鲁棒性进行了分析。